Home / 31,515.44-43,472.03-18,760.10

Finding the Fourth Proportional to 31,515.44, 43,472.03 and 18,760.10

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Solution

The fourth proportional to 31,515.44, 43,472.03 and 18,760.10 is: 25,877.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,515.44 : 43,472.03 = 18,760.10 : x
  2. Step 2: Convert to fraction form
    31,515.44/43,472.03 = 18,760.10/x
  3. Step 3: Cross multiply
    31,515.44x = 43,472.03 × 18,760.10
  4. Step 4: Simplify right side
    31,515.44x = 815,539,318.84
  5. Step 5: Solve for x
    x = 815,539,318.84/31,515.44
  6. Step 6: Final answer
    x = 25,877.46

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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.