Home / 28,400.33-39,192.49-16,470.61

Finding the Fourth Proportional to 28,400.33, 39,192.49 and 16,470.61

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Solution

The fourth proportional to 28,400.33, 39,192.49 and 16,470.61 is: 22,729.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,400.33 : 39,192.49 = 16,470.61 : x
  2. Step 2: Convert to fraction form
    28,400.33/39,192.49 = 16,470.61/x
  3. Step 3: Cross multiply
    28,400.33x = 39,192.49 × 16,470.61
  4. Step 4: Simplify right side
    28,400.33x = 645,524,140.33
  5. Step 5: Solve for x
    x = 645,524,140.33/28,400.33
  6. Step 6: Final answer
    x = 22,729.46

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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.