Home / 21,418.56-29,573.28-15,463.44

Finding the Fourth Proportional to 21,418.56, 29,573.28 and 15,463.44

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Solution

The fourth proportional to 21,418.56, 29,573.28 and 15,463.44 is: 21,350.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,418.56 : 29,573.28 = 15,463.44 : x
  2. Step 2: Convert to fraction form
    21,418.56/29,573.28 = 15,463.44/x
  3. Step 3: Cross multiply
    21,418.56x = 29,573.28 × 15,463.44
  4. Step 4: Simplify right side
    21,418.56x = 457,304,640.88
  5. Step 5: Solve for x
    x = 457,304,640.88/21,418.56
  6. Step 6: Final answer
    x = 21,350.86

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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.