Home / 39,818.60-59,736.54-12,115.88

Finding the Fourth Proportional to 39,818.60, 59,736.54 and 12,115.88

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Solution

The fourth proportional to 39,818.60, 59,736.54 and 12,115.88 is: 18,176.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,818.60 : 59,736.54 = 12,115.88 : x
  2. Step 2: Convert to fraction form
    39,818.60/59,736.54 = 12,115.88/x
  3. Step 3: Cross multiply
    39,818.60x = 59,736.54 × 12,115.88
  4. Step 4: Simplify right side
    39,818.60x = 723,760,451.57
  5. Step 5: Solve for x
    x = 723,760,451.57/39,818.60
  6. Step 6: Final answer
    x = 18,176.44

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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.