Home / 21,251.44-29,326.95-11,691.49

Finding the Fourth Proportional to 21,251.44, 29,326.95 and 11,691.49

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Solution

The fourth proportional to 21,251.44, 29,326.95 and 11,691.49 is: 16,134.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,251.44 : 29,326.95 = 11,691.49 : x
  2. Step 2: Convert to fraction form
    21,251.44/29,326.95 = 11,691.49/x
  3. Step 3: Cross multiply
    21,251.44x = 29,326.95 × 11,691.49
  4. Step 4: Simplify right side
    21,251.44x = 342,875,742.66
  5. Step 5: Solve for x
    x = 342,875,742.66/21,251.44
  6. Step 6: Final answer
    x = 16,134.24

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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.