Home / 21,286.17-29,374.25-11,854.26

Finding the Fourth Proportional to 21,286.17, 29,374.25 and 11,854.26

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Solution

The fourth proportional to 21,286.17, 29,374.25 and 11,854.26 is: 16,358.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,286.17 : 29,374.25 = 11,854.26 : x
  2. Step 2: Convert to fraction form
    21,286.17/29,374.25 = 11,854.26/x
  3. Step 3: Cross multiply
    21,286.17x = 29,374.25 × 11,854.26
  4. Step 4: Simplify right side
    21,286.17x = 348,209,937.53
  5. Step 5: Solve for x
    x = 348,209,937.53/21,286.17
  6. Step 6: Final answer
    x = 16,358.51

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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.