Home / 39,824.80-59,719.84-12,116.32

Finding the Fourth Proportional to 39,824.80, 59,719.84 and 12,116.32

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Solution

The fourth proportional to 39,824.80, 59,719.84 and 12,116.32 is: 18,169.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,824.80 : 59,719.84 = 12,116.32 : x
  2. Step 2: Convert to fraction form
    39,824.80/59,719.84 = 12,116.32/x
  3. Step 3: Cross multiply
    39,824.80x = 59,719.84 × 12,116.32
  4. Step 4: Simplify right side
    39,824.80x = 723,584,691.79
  5. Step 5: Solve for x
    x = 723,584,691.79/39,824.80
  6. Step 6: Final answer
    x = 18,169.20

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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.