Home / 28,290.12-39,042.18-16,356.39

Finding the Fourth Proportional to 28,290.12, 39,042.18 and 16,356.39

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Solution

The fourth proportional to 28,290.12, 39,042.18 and 16,356.39 is: 22,572.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,290.12 : 39,042.18 = 16,356.39 : x
  2. Step 2: Convert to fraction form
    28,290.12/39,042.18 = 16,356.39/x
  3. Step 3: Cross multiply
    28,290.12x = 39,042.18 × 16,356.39
  4. Step 4: Simplify right side
    28,290.12x = 638,589,122.53
  5. Step 5: Solve for x
    x = 638,589,122.53/28,290.12
  6. Step 6: Final answer
    x = 22,572.87

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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.