Home / 22,272.91-30,735.81-12,713.29

Finding the Fourth Proportional to 22,272.91, 30,735.81 and 12,713.29

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Solution

The fourth proportional to 22,272.91, 30,735.81 and 12,713.29 is: 17,543.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,272.91 : 30,735.81 = 12,713.29 : x
  2. Step 2: Convert to fraction form
    22,272.91/30,735.81 = 12,713.29/x
  3. Step 3: Cross multiply
    22,272.91x = 30,735.81 × 12,713.29
  4. Step 4: Simplify right side
    22,272.91x = 390,753,189.08
  5. Step 5: Solve for x
    x = 390,753,189.08/22,272.91
  6. Step 6: Final answer
    x = 17,543.88

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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.