Home / 31,998.24-47,998.20-18,860.04

Finding the Fourth Proportional to 31,998.24, 47,998.20 and 18,860.04

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Solution

The fourth proportional to 31,998.24, 47,998.20 and 18,860.04 is: 28,290.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,998.24 : 47,998.20 = 18,860.04 : x
  2. Step 2: Convert to fraction form
    31,998.24/47,998.20 = 18,860.04/x
  3. Step 3: Cross multiply
    31,998.24x = 47,998.20 × 18,860.04
  4. Step 4: Simplify right side
    31,998.24x = 905,247,971.93
  5. Step 5: Solve for x
    x = 905,247,971.93/31,998.24
  6. Step 6: Final answer
    x = 28,290.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.