Home / 31,564.73-43,540.95-20,230.19

Finding the Fourth Proportional to 31,564.73, 43,540.95 and 20,230.19

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Solution

The fourth proportional to 31,564.73, 43,540.95 and 20,230.19 is: 27,905.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,564.73 : 43,540.95 = 20,230.19 : x
  2. Step 2: Convert to fraction form
    31,564.73/43,540.95 = 20,230.19/x
  3. Step 3: Cross multiply
    31,564.73x = 43,540.95 × 20,230.19
  4. Step 4: Simplify right side
    31,564.73x = 880,841,691.28
  5. Step 5: Solve for x
    x = 880,841,691.28/31,564.73
  6. Step 6: Final answer
    x = 27,905.88

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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.