Home / 28,763.20-39,693.13-16,187.95

Finding the Fourth Proportional to 28,763.20, 39,693.13 and 16,187.95

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Solution

The fourth proportional to 28,763.20, 39,693.13 and 16,187.95 is: 22,339.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,763.20 : 39,693.13 = 16,187.95 : x
  2. Step 2: Convert to fraction form
    28,763.20/39,693.13 = 16,187.95/x
  3. Step 3: Cross multiply
    28,763.20x = 39,693.13 × 16,187.95
  4. Step 4: Simplify right side
    28,763.20x = 642,550,403.78
  5. Step 5: Solve for x
    x = 642,550,403.78/28,763.20
  6. Step 6: Final answer
    x = 22,339.32

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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.