Home / 22,146.72-30,559.68-13,195.20

Finding the Fourth Proportional to 22,146.72, 30,559.68 and 13,195.20

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Solution

The fourth proportional to 22,146.72, 30,559.68 and 13,195.20 is: 18,207.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,146.72 : 30,559.68 = 13,195.20 : x
  2. Step 2: Convert to fraction form
    22,146.72/30,559.68 = 13,195.20/x
  3. Step 3: Cross multiply
    22,146.72x = 30,559.68 × 13,195.20
  4. Step 4: Simplify right side
    22,146.72x = 403,241,204.13
  5. Step 5: Solve for x
    x = 403,241,204.13/22,146.72
  6. Step 6: Final answer
    x = 18,207.72

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Double scale
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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.