Home / 21,306.46-29,383.82-13,349.56

Finding the Fourth Proportional to 21,306.46, 29,383.82 and 13,349.56

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Solution

The fourth proportional to 21,306.46, 29,383.82 and 13,349.56 is: 18,410.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,306.46 : 29,383.82 = 13,349.56 : x
  2. Step 2: Convert to fraction form
    21,306.46/29,383.82 = 13,349.56/x
  3. Step 3: Cross multiply
    21,306.46x = 29,383.82 × 13,349.56
  4. Step 4: Simplify right side
    21,306.46x = 392,261,068.12
  5. Step 5: Solve for x
    x = 392,261,068.12/21,306.46
  6. Step 6: Final answer
    x = 18,410.43

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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.