Home / 48,489.11-72,733.76-13,428.87

Finding the Fourth Proportional to 48,489.11, 72,733.76 and 13,428.87

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Solution

The fourth proportional to 48,489.11, 72,733.76 and 13,428.87 is: 20,143.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,489.11 : 72,733.76 = 13,428.87 : x
  2. Step 2: Convert to fraction form
    48,489.11/72,733.76 = 13,428.87/x
  3. Step 3: Cross multiply
    48,489.11x = 72,733.76 × 13,428.87
  4. Step 4: Simplify right side
    48,489.11x = 976,732,207.65
  5. Step 5: Solve for x
    x = 976,732,207.65/48,489.11
  6. Step 6: Final answer
    x = 20,143.33

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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.