Home / 22,156.13-30,575.46-12,220.13

Finding the Fourth Proportional to 22,156.13, 30,575.46 and 12,220.13

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Solution

The fourth proportional to 22,156.13, 30,575.46 and 12,220.13 is: 16,863.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,156.13 : 30,575.46 = 12,220.13 : x
  2. Step 2: Convert to fraction form
    22,156.13/30,575.46 = 12,220.13/x
  3. Step 3: Cross multiply
    22,156.13x = 30,575.46 × 12,220.13
  4. Step 4: Simplify right side
    22,156.13x = 373,635,943.13
  5. Step 5: Solve for x
    x = 373,635,943.13/22,156.13
  6. Step 6: Final answer
    x = 16,863.78

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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.