Home / 31,626.16-43,646.36-17,478.72

Finding the Fourth Proportional to 31,626.16, 43,646.36 and 17,478.72

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Solution

The fourth proportional to 31,626.16, 43,646.36 and 17,478.72 is: 24,121.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,626.16 : 43,646.36 = 17,478.72 : x
  2. Step 2: Convert to fraction form
    31,626.16/43,646.36 = 17,478.72/x
  3. Step 3: Cross multiply
    31,626.16x = 43,646.36 × 17,478.72
  4. Step 4: Simplify right side
    31,626.16x = 762,882,505.46
  5. Step 5: Solve for x
    x = 762,882,505.46/31,626.16
  6. Step 6: Final answer
    x = 24,121.88

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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.