Home / 31,548.76-43,531.23-18,974.32

Finding the Fourth Proportional to 31,548.76, 43,531.23 and 18,974.32

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Solution

The fourth proportional to 31,548.76, 43,531.23 and 18,974.32 is: 26,180.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,548.76 : 43,531.23 = 18,974.32 : x
  2. Step 2: Convert to fraction form
    31,548.76/43,531.23 = 18,974.32/x
  3. Step 3: Cross multiply
    31,548.76x = 43,531.23 × 18,974.32
  4. Step 4: Simplify right side
    31,548.76x = 825,975,488.01
  5. Step 5: Solve for x
    x = 825,975,488.01/31,548.76
  6. Step 6: Final answer
    x = 26,180.92

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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.