Home / 28,933.85-39,932.97-18,324.47

Finding the Fourth Proportional to 28,933.85, 39,932.97 and 18,324.47

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Solution

The fourth proportional to 28,933.85, 39,932.97 and 18,324.47 is: 25,290.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,933.85 : 39,932.97 = 18,324.47 : x
  2. Step 2: Convert to fraction form
    28,933.85/39,932.97 = 18,324.47/x
  3. Step 3: Cross multiply
    28,933.85x = 39,932.97 × 18,324.47
  4. Step 4: Simplify right side
    28,933.85x = 731,750,510.78
  5. Step 5: Solve for x
    x = 731,750,510.78/28,933.85
  6. Step 6: Final answer
    x = 25,290.46

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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.