Home / 31,478.82-43,439.45-17,330.75

Finding the Fourth Proportional to 31,478.82, 43,439.45 and 17,330.75

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Solution

The fourth proportional to 31,478.82, 43,439.45 and 17,330.75 is: 23,915.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,478.82 : 43,439.45 = 17,330.75 : x
  2. Step 2: Convert to fraction form
    31,478.82/43,439.45 = 17,330.75/x
  3. Step 3: Cross multiply
    31,478.82x = 43,439.45 × 17,330.75
  4. Step 4: Simplify right side
    31,478.82x = 752,838,096.16
  5. Step 5: Solve for x
    x = 752,838,096.16/31,478.82
  6. Step 6: Final answer
    x = 23,915.71

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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.