Home / 22,195.92-30,631.28-12,764.48

Finding the Fourth Proportional to 22,195.92, 30,631.28 and 12,764.48

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Solution

The fourth proportional to 22,195.92, 30,631.28 and 12,764.48 is: 17,615.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,195.92 : 30,631.28 = 12,764.48 : x
  2. Step 2: Convert to fraction form
    22,195.92/30,631.28 = 12,764.48/x
  3. Step 3: Cross multiply
    22,195.92x = 30,631.28 × 12,764.48
  4. Step 4: Simplify right side
    22,195.92x = 390,992,360.93
  5. Step 5: Solve for x
    x = 390,992,360.93/22,195.92
  6. Step 6: Final answer
    x = 17,615.51

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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.