Home / 22,587.20-31,170.12-13,026.80

Finding the Fourth Proportional to 22,587.20, 31,170.12 and 13,026.80

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Solution

The fourth proportional to 22,587.20, 31,170.12 and 13,026.80 is: 17,976.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,587.20 : 31,170.12 = 13,026.80 : x
  2. Step 2: Convert to fraction form
    22,587.20/31,170.12 = 13,026.80/x
  3. Step 3: Cross multiply
    22,587.20x = 31,170.12 × 13,026.80
  4. Step 4: Simplify right side
    22,587.20x = 406,046,919.22
  5. Step 5: Solve for x
    x = 406,046,919.22/22,587.20
  6. Step 6: Final answer
    x = 17,976.86

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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.