Home / 21,531.62-29,711.62-19,944.68

Finding the Fourth Proportional to 21,531.62, 29,711.62 and 19,944.68

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Solution

The fourth proportional to 21,531.62, 29,711.62 and 19,944.68 is: 27,521.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,531.62 : 29,711.62 = 19,944.68 : x
  2. Step 2: Convert to fraction form
    21,531.62/29,711.62 = 19,944.68/x
  3. Step 3: Cross multiply
    21,531.62x = 29,711.62 × 19,944.68
  4. Step 4: Simplify right side
    21,531.62x = 592,588,629.55
  5. Step 5: Solve for x
    x = 592,588,629.55/21,531.62
  6. Step 6: Final answer
    x = 27,521.78

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1.5x scale

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.