Home / 21,371.16-29,481.42-14,306.88

Finding the Fourth Proportional to 21,371.16, 29,481.42 and 14,306.88

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Solution

The fourth proportional to 21,371.16, 29,481.42 and 14,306.88 is: 19,736.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,371.16 : 29,481.42 = 14,306.88 : x
  2. Step 2: Convert to fraction form
    21,371.16/29,481.42 = 14,306.88/x
  3. Step 3: Cross multiply
    21,371.16x = 29,481.42 × 14,306.88
  4. Step 4: Simplify right side
    21,371.16x = 421,787,138.17
  5. Step 5: Solve for x
    x = 421,787,138.17/21,371.16
  6. Step 6: Final answer
    x = 19,736.28

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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.