Home / 31,930.40-47,809.20-23,117.60

Finding the Fourth Proportional to 31,930.40, 47,809.20 and 23,117.60

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Solution

The fourth proportional to 31,930.40, 47,809.20 and 23,117.60 is: 34,613.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,930.40 : 47,809.20 = 23,117.60 : x
  2. Step 2: Convert to fraction form
    31,930.40/47,809.20 = 23,117.60/x
  3. Step 3: Cross multiply
    31,930.40x = 47,809.20 × 23,117.60
  4. Step 4: Simplify right side
    31,930.40x = 1,105,233,961.92
  5. Step 5: Solve for x
    x = 1,105,233,961.92/31,930.40
  6. Step 6: Final answer
    x = 34,613.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.