Home / 31,853.52-43,958.70-18,425.88

Finding the Fourth Proportional to 31,853.52, 43,958.70 and 18,425.88

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Solution

The fourth proportional to 31,853.52, 43,958.70 and 18,425.88 is: 25,428.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,853.52 : 43,958.70 = 18,425.88 : x
  2. Step 2: Convert to fraction form
    31,853.52/43,958.70 = 18,425.88/x
  3. Step 3: Cross multiply
    31,853.52x = 43,958.70 × 18,425.88
  4. Step 4: Simplify right side
    31,853.52x = 809,977,731.16
  5. Step 5: Solve for x
    x = 809,977,731.16/31,853.52
  6. Step 6: Final answer
    x = 25,428.20

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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.