Home / 30,148.26-41,606.74-16,720.80

Finding the Fourth Proportional to 30,148.26, 41,606.74 and 16,720.80

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Solution

The fourth proportional to 30,148.26, 41,606.74 and 16,720.80 is: 23,075.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,148.26 : 41,606.74 = 16,720.80 : x
  2. Step 2: Convert to fraction form
    30,148.26/41,606.74 = 16,720.80/x
  3. Step 3: Cross multiply
    30,148.26x = 41,606.74 × 16,720.80
  4. Step 4: Simplify right side
    30,148.26x = 695,697,978.19
  5. Step 5: Solve for x
    x = 695,697,978.19/30,148.26
  6. Step 6: Final answer
    x = 23,075.89

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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.