Home / 19,079.13-28,635.17-13,239.84

Finding the Fourth Proportional to 19,079.13, 28,635.17 and 13,239.84

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Solution

The fourth proportional to 19,079.13, 28,635.17 and 13,239.84 is: 19,871.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,079.13 : 28,635.17 = 13,239.84 : x
  2. Step 2: Convert to fraction form
    19,079.13/28,635.17 = 13,239.84/x
  3. Step 3: Cross multiply
    19,079.13x = 28,635.17 × 13,239.84
  4. Step 4: Simplify right side
    19,079.13x = 379,125,002.97
  5. Step 5: Solve for x
    x = 379,125,002.97/19,079.13
  6. Step 6: Final answer
    x = 19,871.19

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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.