Home / 39,691.62-59,525.11-13,390.21

Finding the Fourth Proportional to 39,691.62, 59,525.11 and 13,390.21

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Solution

The fourth proportional to 39,691.62, 59,525.11 and 13,390.21 is: 20,081.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,691.62 : 59,525.11 = 13,390.21 : x
  2. Step 2: Convert to fraction form
    39,691.62/59,525.11 = 13,390.21/x
  3. Step 3: Cross multiply
    39,691.62x = 59,525.11 × 13,390.21
  4. Step 4: Simplify right side
    39,691.62x = 797,053,814.32
  5. Step 5: Solve for x
    x = 797,053,814.32/39,691.62
  6. Step 6: Final answer
    x = 20,081.16

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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.