Home / 22,748.12-31,391.40-12,677.66

Finding the Fourth Proportional to 22,748.12, 31,391.40 and 12,677.66

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Solution

The fourth proportional to 22,748.12, 31,391.40 and 12,677.66 is: 17,494.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,748.12 : 31,391.40 = 12,677.66 : x
  2. Step 2: Convert to fraction form
    22,748.12/31,391.40 = 12,677.66/x
  3. Step 3: Cross multiply
    22,748.12x = 31,391.40 × 12,677.66
  4. Step 4: Simplify right side
    22,748.12x = 397,969,496.12
  5. Step 5: Solve for x
    x = 397,969,496.12/22,748.12
  6. Step 6: Final answer
    x = 17,494.61

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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.