Home / 22,302.20-30,772.68-13,225.88

Finding the Fourth Proportional to 22,302.20, 30,772.68 and 13,225.88

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Solution

The fourth proportional to 22,302.20, 30,772.68 and 13,225.88 is: 18,249.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,302.20 : 30,772.68 = 13,225.88 : x
  2. Step 2: Convert to fraction form
    22,302.20/30,772.68 = 13,225.88/x
  3. Step 3: Cross multiply
    22,302.20x = 30,772.68 × 13,225.88
  4. Step 4: Simplify right side
    22,302.20x = 406,995,772.96
  5. Step 5: Solve for x
    x = 406,995,772.96/22,302.20
  6. Step 6: Final answer
    x = 18,249.13

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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.