Home / 21,091.32-31,677.96-15,522.66

Finding the Fourth Proportional to 21,091.32, 31,677.96 and 15,522.66

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Solution

The fourth proportional to 21,091.32, 31,677.96 and 15,522.66 is: 23,314.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,091.32 : 31,677.96 = 15,522.66 : x
  2. Step 2: Convert to fraction form
    21,091.32/31,677.96 = 15,522.66/x
  3. Step 3: Cross multiply
    21,091.32x = 31,677.96 × 15,522.66
  4. Step 4: Simplify right side
    21,091.32x = 491,726,202.57
  5. Step 5: Solve for x
    x = 491,726,202.57/21,091.32
  6. Step 6: Final answer
    x = 23,314.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.