Home / 30,237.20-45,337.88-9,170.80

Finding the Fourth Proportional to 30,237.20, 45,337.88 and 9,170.80

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Solution

The fourth proportional to 30,237.20, 45,337.88 and 9,170.80 is: 13,750.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,237.20 : 45,337.88 = 9,170.80 : x
  2. Step 2: Convert to fraction form
    30,237.20/45,337.88 = 9,170.80/x
  3. Step 3: Cross multiply
    30,237.20x = 45,337.88 × 9,170.80
  4. Step 4: Simplify right side
    30,237.20x = 415,784,629.90
  5. Step 5: Solve for x
    x = 415,784,629.90/30,237.20
  6. Step 6: Final answer
    x = 13,750.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.