Home / 31,812.13-43,902.56-17,665.88

Finding the Fourth Proportional to 31,812.13, 43,902.56 and 17,665.88

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Solution

The fourth proportional to 31,812.13, 43,902.56 and 17,665.88 is: 24,379.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,812.13 : 43,902.56 = 17,665.88 : x
  2. Step 2: Convert to fraction form
    31,812.13/43,902.56 = 17,665.88/x
  3. Step 3: Cross multiply
    31,812.13x = 43,902.56 × 17,665.88
  4. Step 4: Simplify right side
    31,812.13x = 775,577,356.65
  5. Step 5: Solve for x
    x = 775,577,356.65/31,812.13
  6. Step 6: Final answer
    x = 24,379.93

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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.