Home / 19,934.20-29,901.30-17,687.80

Finding the Fourth Proportional to 19,934.20, 29,901.30 and 17,687.80

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Solution

The fourth proportional to 19,934.20, 29,901.30 and 17,687.80 is: 26,531.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,934.20 : 29,901.30 = 17,687.80 : x
  2. Step 2: Convert to fraction form
    19,934.20/29,901.30 = 17,687.80/x
  3. Step 3: Cross multiply
    19,934.20x = 29,901.30 × 17,687.80
  4. Step 4: Simplify right side
    19,934.20x = 528,888,214.14
  5. Step 5: Solve for x
    x = 528,888,214.14/19,934.20
  6. Step 6: Final answer
    x = 26,531.70

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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.