Home / 22,079.16-30,470.04-12,649.55

Finding the Fourth Proportional to 22,079.16, 30,470.04 and 12,649.55

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Solution

The fourth proportional to 22,079.16, 30,470.04 and 12,649.55 is: 17,456.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,079.16 : 30,470.04 = 12,649.55 : x
  2. Step 2: Convert to fraction form
    22,079.16/30,470.04 = 12,649.55/x
  3. Step 3: Cross multiply
    22,079.16x = 30,470.04 × 12,649.55
  4. Step 4: Simplify right side
    22,079.16x = 385,432,142.13
  5. Step 5: Solve for x
    x = 385,432,142.13/22,079.16
  6. Step 6: Final answer
    x = 17,456.83

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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.