Home / 21,294.59-29,387.07-11,863.35

Finding the Fourth Proportional to 21,294.59, 29,387.07 and 11,863.35

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Solution

The fourth proportional to 21,294.59, 29,387.07 and 11,863.35 is: 16,371.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,294.59 : 29,387.07 = 11,863.35 : x
  2. Step 2: Convert to fraction form
    21,294.59/29,387.07 = 11,863.35/x
  3. Step 3: Cross multiply
    21,294.59x = 29,387.07 × 11,863.35
  4. Step 4: Simplify right side
    21,294.59x = 348,629,096.88
  5. Step 5: Solve for x
    x = 348,629,096.88/21,294.59
  6. Step 6: Final answer
    x = 16,371.73

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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.