Home / 21,432.36-29,591.82-13,882.44

Finding the Fourth Proportional to 21,432.36, 29,591.82 and 13,882.44

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Solution

The fourth proportional to 21,432.36, 29,591.82 and 13,882.44 is: 19,167.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,432.36 : 29,591.82 = 13,882.44 : x
  2. Step 2: Convert to fraction form
    21,432.36/29,591.82 = 13,882.44/x
  3. Step 3: Cross multiply
    21,432.36x = 29,591.82 × 13,882.44
  4. Step 4: Simplify right side
    21,432.36x = 410,806,665.64
  5. Step 5: Solve for x
    x = 410,806,665.64/21,432.36
  6. Step 6: Final answer
    x = 19,167.59

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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.