Home / 22,132.32-30,531.78-13,176.96

Finding the Fourth Proportional to 22,132.32, 30,531.78 and 13,176.96

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Solution

The fourth proportional to 22,132.32, 30,531.78 and 13,176.96 is: 18,177.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,132.32 : 30,531.78 = 13,176.96 : x
  2. Step 2: Convert to fraction form
    22,132.32/30,531.78 = 13,176.96/x
  3. Step 3: Cross multiply
    22,132.32x = 30,531.78 × 13,176.96
  4. Step 4: Simplify right side
    22,132.32x = 402,316,043.79
  5. Step 5: Solve for x
    x = 402,316,043.79/22,132.32
  6. Step 6: Final answer
    x = 18,177.76

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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.