Home / 31,418.50-43,357.62-17,989.96

Finding the Fourth Proportional to 31,418.50, 43,357.62 and 17,989.96

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Solution

The fourth proportional to 31,418.50, 43,357.62 and 17,989.96 is: 24,826.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,418.50 : 43,357.62 = 17,989.96 : x
  2. Step 2: Convert to fraction form
    31,418.50/43,357.62 = 17,989.96/x
  3. Step 3: Cross multiply
    31,418.50x = 43,357.62 × 17,989.96
  4. Step 4: Simplify right side
    31,418.50x = 780,001,849.50
  5. Step 5: Solve for x
    x = 780,001,849.50/31,418.50
  6. Step 6: Final answer
    x = 24,826.20

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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.