Home / 31,561.52-43,555.08-17,221.18

Finding the Fourth Proportional to 31,561.52, 43,555.08 and 17,221.18

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Solution

The fourth proportional to 31,561.52, 43,555.08 and 17,221.18 is: 23,765.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,561.52 : 43,555.08 = 17,221.18 : x
  2. Step 2: Convert to fraction form
    31,561.52/43,555.08 = 17,221.18/x
  3. Step 3: Cross multiply
    31,561.52x = 43,555.08 × 17,221.18
  4. Step 4: Simplify right side
    31,561.52x = 750,069,763.71
  5. Step 5: Solve for x
    x = 750,069,763.71/31,561.52
  6. Step 6: Final answer
    x = 23,765.33

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Half scale
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Double scale
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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.