Home / 31,367.52-43,288.56-17,220.60

Finding the Fourth Proportional to 31,367.52, 43,288.56 and 17,220.60

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Solution

The fourth proportional to 31,367.52, 43,288.56 and 17,220.60 is: 23,765.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,367.52 : 43,288.56 = 17,220.60 : x
  2. Step 2: Convert to fraction form
    31,367.52/43,288.56 = 17,220.60/x
  3. Step 3: Cross multiply
    31,367.52x = 43,288.56 × 17,220.60
  4. Step 4: Simplify right side
    31,367.52x = 745,454,976.34
  5. Step 5: Solve for x
    x = 745,454,976.34/31,367.52
  6. Step 6: Final answer
    x = 23,765.19

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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.