Home / 31,287.64-43,176.98-16,947.62

Finding the Fourth Proportional to 31,287.64, 43,176.98 and 16,947.62

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Solution

The fourth proportional to 31,287.64, 43,176.98 and 16,947.62 is: 23,387.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,287.64 : 43,176.98 = 16,947.62 : x
  2. Step 2: Convert to fraction form
    31,287.64/43,176.98 = 16,947.62/x
  3. Step 3: Cross multiply
    31,287.64x = 43,176.98 × 16,947.62
  4. Step 4: Simplify right side
    31,287.64x = 731,747,049.79
  5. Step 5: Solve for x
    x = 731,747,049.79/31,287.64
  6. Step 6: Final answer
    x = 23,387.74

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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.