Home / 39,693.68-59,499.12-13,389.38

Finding the Fourth Proportional to 39,693.68, 59,499.12 and 13,389.38

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Solution

The fourth proportional to 39,693.68, 59,499.12 and 13,389.38 is: 20,070.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,693.68 : 59,499.12 = 13,389.38 : x
  2. Step 2: Convert to fraction form
    39,693.68/59,499.12 = 13,389.38/x
  3. Step 3: Cross multiply
    39,693.68x = 59,499.12 × 13,389.38
  4. Step 4: Simplify right side
    39,693.68x = 796,656,327.35
  5. Step 5: Solve for x
    x = 796,656,327.35/39,693.68
  6. Step 6: Final answer
    x = 20,070.11

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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.