Home / 28,965.60-43,446.24-9,988.38

Finding the Fourth Proportional to 28,965.60, 43,446.24 and 9,988.38

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Solution

The fourth proportional to 28,965.60, 43,446.24 and 9,988.38 is: 14,981.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,965.60 : 43,446.24 = 9,988.38 : x
  2. Step 2: Convert to fraction form
    28,965.60/43,446.24 = 9,988.38/x
  3. Step 3: Cross multiply
    28,965.60x = 43,446.24 × 9,988.38
  4. Step 4: Simplify right side
    28,965.60x = 433,957,554.69
  5. Step 5: Solve for x
    x = 433,957,554.69/28,965.60
  6. Step 6: Final answer
    x = 14,981.83

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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.