Home / 31,379.65-43,304.20-17,232.60

Finding the Fourth Proportional to 31,379.65, 43,304.20 and 17,232.60

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Solution

The fourth proportional to 31,379.65, 43,304.20 and 17,232.60 is: 23,781.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,379.65 : 43,304.20 = 17,232.60 : x
  2. Step 2: Convert to fraction form
    31,379.65/43,304.20 = 17,232.60/x
  3. Step 3: Cross multiply
    31,379.65x = 43,304.20 × 17,232.60
  4. Step 4: Simplify right side
    31,379.65x = 746,243,870.20
  5. Step 5: Solve for x
    x = 746,243,870.20/31,379.65
  6. Step 6: Final answer
    x = 23,781.14

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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.