Home / 31,249.18-43,117.20-18,506.37

Finding the Fourth Proportional to 31,249.18, 43,117.20 and 18,506.37

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Solution

The fourth proportional to 31,249.18, 43,117.20 and 18,506.37 is: 25,534.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,249.18 : 43,117.20 = 18,506.37 : x
  2. Step 2: Convert to fraction form
    31,249.18/43,117.20 = 18,506.37/x
  3. Step 3: Cross multiply
    31,249.18x = 43,117.20 × 18,506.37
  4. Step 4: Simplify right side
    31,249.18x = 797,942,856.56
  5. Step 5: Solve for x
    x = 797,942,856.56/31,249.18
  6. Step 6: Final answer
    x = 25,534.84

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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.