Home / 31,432.58-43,357.92-18,681.29

Finding the Fourth Proportional to 31,432.58, 43,357.92 and 18,681.29

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Solution

The fourth proportional to 31,432.58, 43,357.92 and 18,681.29 is: 25,768.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,432.58 : 43,357.92 = 18,681.29 : x
  2. Step 2: Convert to fraction form
    31,432.58/43,357.92 = 18,681.29/x
  3. Step 3: Cross multiply
    31,432.58x = 43,357.92 × 18,681.29
  4. Step 4: Simplify right side
    31,432.58x = 809,981,877.32
  5. Step 5: Solve for x
    x = 809,981,877.32/31,432.58
  6. Step 6: Final answer
    x = 25,768.86

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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.