Home / 28,658.40-42,925.28-17,531.43

Finding the Fourth Proportional to 28,658.40, 42,925.28 and 17,531.43

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Solution

The fourth proportional to 28,658.40, 42,925.28 and 17,531.43 is: 26,259.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,658.40 : 42,925.28 = 17,531.43 : x
  2. Step 2: Convert to fraction form
    28,658.40/42,925.28 = 17,531.43/x
  3. Step 3: Cross multiply
    28,658.40x = 42,925.28 × 17,531.43
  4. Step 4: Simplify right side
    28,658.40x = 752,541,453.89
  5. Step 5: Solve for x
    x = 752,541,453.89/28,658.40
  6. Step 6: Final answer
    x = 26,259.02

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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.