Home / 31,358.80-43,273.20-17,211.54

Finding the Fourth Proportional to 31,358.80, 43,273.20 and 17,211.54

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Solution

The fourth proportional to 31,358.80, 43,273.20 and 17,211.54 is: 23,750.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,358.80 : 43,273.20 = 17,211.54 : x
  2. Step 2: Convert to fraction form
    31,358.80/43,273.20 = 17,211.54/x
  3. Step 3: Cross multiply
    31,358.80x = 43,273.20 × 17,211.54
  4. Step 4: Simplify right side
    31,358.80x = 744,798,412.73
  5. Step 5: Solve for x
    x = 744,798,412.73/31,358.80
  6. Step 6: Final answer
    x = 23,750.86

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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.