Home / 31,290.04-43,180.62-17,863.12

Finding the Fourth Proportional to 31,290.04, 43,180.62 and 17,863.12

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Solution

The fourth proportional to 31,290.04, 43,180.62 and 17,863.12 is: 24,651.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,290.04 : 43,180.62 = 17,863.12 : x
  2. Step 2: Convert to fraction form
    31,290.04/43,180.62 = 17,863.12/x
  3. Step 3: Cross multiply
    31,290.04x = 43,180.62 × 17,863.12
  4. Step 4: Simplify right side
    31,290.04x = 771,340,596.73
  5. Step 5: Solve for x
    x = 771,340,596.73/31,290.04
  6. Step 6: Final answer
    x = 24,651.31

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Double scale
Find fourth proportional to 31,291.04, 43,182 and 17,864.12
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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.