Home / 31,363.38-43,281.40-17,215.92

Finding the Fourth Proportional to 31,363.38, 43,281.40 and 17,215.92

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Solution

The fourth proportional to 31,363.38, 43,281.40 and 17,215.92 is: 23,757.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,363.38 : 43,281.40 = 17,215.92 : x
  2. Step 2: Convert to fraction form
    31,363.38/43,281.40 = 17,215.92/x
  3. Step 3: Cross multiply
    31,363.38x = 43,281.40 × 17,215.92
  4. Step 4: Simplify right side
    31,363.38x = 745,129,119.89
  5. Step 5: Solve for x
    x = 745,129,119.89/31,363.38
  6. Step 6: Final answer
    x = 23,757.93

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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.