Home / 31,358.76-43,275.42-17,211.30

Finding the Fourth Proportional to 31,358.76, 43,275.42 and 17,211.30

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Solution

The fourth proportional to 31,358.76, 43,275.42 and 17,211.30 is: 23,751.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,358.76 : 43,275.42 = 17,211.30 : x
  2. Step 2: Convert to fraction form
    31,358.76/43,275.42 = 17,211.30/x
  3. Step 3: Cross multiply
    31,358.76x = 43,275.42 × 17,211.30
  4. Step 4: Simplify right side
    31,358.76x = 744,826,236.25
  5. Step 5: Solve for x
    x = 744,826,236.25/31,358.76
  6. Step 6: Final answer
    x = 23,751.78

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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.