Home / 28,981.43-43,488.29-15,654.15

Finding the Fourth Proportional to 28,981.43, 43,488.29 and 15,654.15

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Solution

The fourth proportional to 28,981.43, 43,488.29 and 15,654.15 is: 23,489.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,981.43 : 43,488.29 = 15,654.15 : x
  2. Step 2: Convert to fraction form
    28,981.43/43,488.29 = 15,654.15/x
  3. Step 3: Cross multiply
    28,981.43x = 43,488.29 × 15,654.15
  4. Step 4: Simplify right side
    28,981.43x = 680,772,214.90
  5. Step 5: Solve for x
    x = 680,772,214.90/28,981.43
  6. Step 6: Final answer
    x = 23,489.95

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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.