Home / 31,539.56-43,524.27-18,115.02

Finding the Fourth Proportional to 31,539.56, 43,524.27 and 18,115.02

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Solution

The fourth proportional to 31,539.56, 43,524.27 and 18,115.02 is: 24,998.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,539.56 : 43,524.27 = 18,115.02 : x
  2. Step 2: Convert to fraction form
    31,539.56/43,524.27 = 18,115.02/x
  3. Step 3: Cross multiply
    31,539.56x = 43,524.27 × 18,115.02
  4. Step 4: Simplify right side
    31,539.56x = 788,443,021.54
  5. Step 5: Solve for x
    x = 788,443,021.54/31,539.56
  6. Step 6: Final answer
    x = 24,998.55

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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.