Home / 30,289.79-41,798.97-16,860.69

Finding the Fourth Proportional to 30,289.79, 41,798.97 and 16,860.69

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Solution

The fourth proportional to 30,289.79, 41,798.97 and 16,860.69 is: 23,267.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,289.79 : 41,798.97 = 16,860.69 : x
  2. Step 2: Convert to fraction form
    30,289.79/41,798.97 = 16,860.69/x
  3. Step 3: Cross multiply
    30,289.79x = 41,798.97 × 16,860.69
  4. Step 4: Simplify right side
    30,289.79x = 704,759,475.49
  5. Step 5: Solve for x
    x = 704,759,475.49/30,289.79
  6. Step 6: Final answer
    x = 23,267.23

Related Problems

Find fourth proportional to 15,144.90, 20,899.49 and 8,430.35
Half scale
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Double scale
Find fourth proportional to 30,290.79, 41,800.35 and 16,861.69
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.