Home / 39,785.52-59,685.12-16,399.20

Finding the Fourth Proportional to 39,785.52, 59,685.12 and 16,399.20

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Solution

The fourth proportional to 39,785.52, 59,685.12 and 16,399.20 is: 24,601.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,785.52 : 59,685.12 = 16,399.20 : x
  2. Step 2: Convert to fraction form
    39,785.52/59,685.12 = 16,399.20/x
  3. Step 3: Cross multiply
    39,785.52x = 59,685.12 × 16,399.20
  4. Step 4: Simplify right side
    39,785.52x = 978,788,219.90
  5. Step 5: Solve for x
    x = 978,788,219.90/39,785.52
  6. Step 6: Final answer
    x = 24,601.62

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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.