Home / 21,553.22-29,734.98-15,901.58

Finding the Fourth Proportional to 21,553.22, 29,734.98 and 15,901.58

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Solution

The fourth proportional to 21,553.22, 29,734.98 and 15,901.58 is: 21,937.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,553.22 : 29,734.98 = 15,901.58 : x
  2. Step 2: Convert to fraction form
    21,553.22/29,734.98 = 15,901.58/x
  3. Step 3: Cross multiply
    21,553.22x = 29,734.98 × 15,901.58
  4. Step 4: Simplify right side
    21,553.22x = 472,833,163.27
  5. Step 5: Solve for x
    x = 472,833,163.27/21,553.22
  6. Step 6: Final answer
    x = 21,937.94

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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.