Home / 22,716.20-31,348.68-12,645.08

Finding the Fourth Proportional to 22,716.20, 31,348.68 and 12,645.08

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Solution

The fourth proportional to 22,716.20, 31,348.68 and 12,645.08 is: 17,450.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,716.20 : 31,348.68 = 12,645.08 : x
  2. Step 2: Convert to fraction form
    22,716.20/31,348.68 = 12,645.08/x
  3. Step 3: Cross multiply
    22,716.20x = 31,348.68 × 12,645.08
  4. Step 4: Simplify right side
    22,716.20x = 396,406,566.49
  5. Step 5: Solve for x
    x = 396,406,566.49/22,716.20
  6. Step 6: Final answer
    x = 17,450.39

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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.