Home / 31,213.92-43,089.66-18,463.08

Finding the Fourth Proportional to 31,213.92, 43,089.66 and 18,463.08

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Solution

The fourth proportional to 31,213.92, 43,089.66 and 18,463.08 is: 25,487.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,213.92 : 43,089.66 = 18,463.08 : x
  2. Step 2: Convert to fraction form
    31,213.92/43,089.66 = 18,463.08/x
  3. Step 3: Cross multiply
    31,213.92x = 43,089.66 × 18,463.08
  4. Step 4: Simplify right side
    31,213.92x = 795,567,839.75
  5. Step 5: Solve for x
    x = 795,567,839.75/31,213.92
  6. Step 6: Final answer
    x = 25,487.60

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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.