Home / 27,881.08-38,476.42-15,305.96

Finding the Fourth Proportional to 27,881.08, 38,476.42 and 15,305.96

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Solution

The fourth proportional to 27,881.08, 38,476.42 and 15,305.96 is: 21,122.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,881.08 : 38,476.42 = 15,305.96 : x
  2. Step 2: Convert to fraction form
    27,881.08/38,476.42 = 15,305.96/x
  3. Step 3: Cross multiply
    27,881.08x = 38,476.42 × 15,305.96
  4. Step 4: Simplify right side
    27,881.08x = 588,918,545.46
  5. Step 5: Solve for x
    x = 588,918,545.46/27,881.08
  6. Step 6: Final answer
    x = 21,122.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.