Home / 31,634.91-43,654.92-18,210.48

Finding the Fourth Proportional to 31,634.91, 43,654.92 and 18,210.48

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Solution

The fourth proportional to 31,634.91, 43,654.92 and 18,210.48 is: 25,129.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,634.91 : 43,654.92 = 18,210.48 : x
  2. Step 2: Convert to fraction form
    31,634.91/43,654.92 = 18,210.48/x
  3. Step 3: Cross multiply
    31,634.91x = 43,654.92 × 18,210.48
  4. Step 4: Simplify right side
    31,634.91x = 794,977,047.56
  5. Step 5: Solve for x
    x = 794,977,047.56/31,634.91
  6. Step 6: Final answer
    x = 25,129.74

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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.