Home / 31,327.29-43,231.46-16,987.19

Finding the Fourth Proportional to 31,327.29, 43,231.46 and 16,987.19

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Solution

The fourth proportional to 31,327.29, 43,231.46 and 16,987.19 is: 23,442.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,327.29 : 43,231.46 = 16,987.19 : x
  2. Step 2: Convert to fraction form
    31,327.29/43,231.46 = 16,987.19/x
  3. Step 3: Cross multiply
    31,327.29x = 43,231.46 × 16,987.19
  4. Step 4: Simplify right side
    31,327.29x = 734,380,723.90
  5. Step 5: Solve for x
    x = 734,380,723.90/31,327.29
  6. Step 6: Final answer
    x = 23,442.20

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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.