Home / 38,981.03-58,371.91-21,431.57

Finding the Fourth Proportional to 38,981.03, 58,371.91 and 21,431.57

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Solution

The fourth proportional to 38,981.03, 58,371.91 and 21,431.57 is: 32,092.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,981.03 : 58,371.91 = 21,431.57 : x
  2. Step 2: Convert to fraction form
    38,981.03/58,371.91 = 21,431.57/x
  3. Step 3: Cross multiply
    38,981.03x = 58,371.91 × 21,431.57
  4. Step 4: Simplify right side
    38,981.03x = 1,251,001,329.76
  5. Step 5: Solve for x
    x = 1,251,001,329.76/38,981.03
  6. Step 6: Final answer
    x = 32,092.57

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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.