Home / 21,427.19-29,600.31-17,114.61

Finding the Fourth Proportional to 21,427.19, 29,600.31 and 17,114.61

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Solution

The fourth proportional to 21,427.19, 29,600.31 and 17,114.61 is: 23,642.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,427.19 : 29,600.31 = 17,114.61 : x
  2. Step 2: Convert to fraction form
    21,427.19/29,600.31 = 17,114.61/x
  3. Step 3: Cross multiply
    21,427.19x = 29,600.31 × 17,114.61
  4. Step 4: Simplify right side
    21,427.19x = 506,597,761.53
  5. Step 5: Solve for x
    x = 506,597,761.53/21,427.19
  6. Step 6: Final answer
    x = 23,642.76

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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.