Home / 31,564.23-43,540.25-20,229.69

Finding the Fourth Proportional to 31,564.23, 43,540.25 and 20,229.69

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Solution

The fourth proportional to 31,564.23, 43,540.25 and 20,229.69 is: 27,905.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,564.23 : 43,540.25 = 20,229.69 : x
  2. Step 2: Convert to fraction form
    31,564.23/43,540.25 = 20,229.69/x
  3. Step 3: Cross multiply
    31,564.23x = 43,540.25 × 20,229.69
  4. Step 4: Simplify right side
    31,564.23x = 880,805,760.02
  5. Step 5: Solve for x
    x = 880,805,760.02/31,564.23
  6. Step 6: Final answer
    x = 27,905.19

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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.