Home / 22,731.30-31,373.70-13,172.76

Finding the Fourth Proportional to 22,731.30, 31,373.70 and 13,172.76

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Solution

The fourth proportional to 22,731.30, 31,373.70 and 13,172.76 is: 18,181.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,731.30 : 31,373.70 = 13,172.76 : x
  2. Step 2: Convert to fraction form
    22,731.30/31,373.70 = 13,172.76/x
  3. Step 3: Cross multiply
    22,731.30x = 31,373.70 × 13,172.76
  4. Step 4: Simplify right side
    22,731.30x = 413,278,220.41
  5. Step 5: Solve for x
    x = 413,278,220.41/22,731.30
  6. Step 6: Final answer
    x = 18,181.02

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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.