Home / 19,078.38-28,617.57-15,363.18

Finding the Fourth Proportional to 19,078.38, 28,617.57 and 15,363.18

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Solution

The fourth proportional to 19,078.38, 28,617.57 and 15,363.18 is: 23,044.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,078.38 : 28,617.57 = 15,363.18 : x
  2. Step 2: Convert to fraction form
    19,078.38/28,617.57 = 15,363.18/x
  3. Step 3: Cross multiply
    19,078.38x = 28,617.57 × 15,363.18
  4. Step 4: Simplify right side
    19,078.38x = 439,656,879.07
  5. Step 5: Solve for x
    x = 439,656,879.07/19,078.38
  6. Step 6: Final answer
    x = 23,044.77

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Similar ratio
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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.