Home / 26,221.31-39,345.63-10,422.97

Finding the Fourth Proportional to 26,221.31, 39,345.63 and 10,422.97

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Solution

The fourth proportional to 26,221.31, 39,345.63 and 10,422.97 is: 15,639.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,221.31 : 39,345.63 = 10,422.97 : x
  2. Step 2: Convert to fraction form
    26,221.31/39,345.63 = 10,422.97/x
  3. Step 3: Cross multiply
    26,221.31x = 39,345.63 × 10,422.97
  4. Step 4: Simplify right side
    26,221.31x = 410,098,321.12
  5. Step 5: Solve for x
    x = 410,098,321.12/26,221.31
  6. Step 6: Final answer
    x = 15,639.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.