Home / 21,543.31-29,729.24-11,983.17

Finding the Fourth Proportional to 21,543.31, 29,729.24 and 11,983.17

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Solution

The fourth proportional to 21,543.31, 29,729.24 and 11,983.17 is: 16,536.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,543.31 : 29,729.24 = 11,983.17 : x
  2. Step 2: Convert to fraction form
    21,543.31/29,729.24 = 11,983.17/x
  3. Step 3: Cross multiply
    21,543.31x = 29,729.24 × 11,983.17
  4. Step 4: Simplify right side
    21,543.31x = 356,250,388.24
  5. Step 5: Solve for x
    x = 356,250,388.24/21,543.31
  6. Step 6: Final answer
    x = 16,536.47

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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.