Home / 29,129.80-43,672.02-13,545.40

Finding the Fourth Proportional to 29,129.80, 43,672.02 and 13,545.40

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Solution

The fourth proportional to 29,129.80, 43,672.02 and 13,545.40 is: 20,307.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,129.80 : 43,672.02 = 13,545.40 : x
  2. Step 2: Convert to fraction form
    29,129.80/43,672.02 = 13,545.40/x
  3. Step 3: Cross multiply
    29,129.80x = 43,672.02 × 13,545.40
  4. Step 4: Simplify right side
    29,129.80x = 591,554,979.71
  5. Step 5: Solve for x
    x = 591,554,979.71/29,129.80
  6. Step 6: Final answer
    x = 20,307.55

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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.