Home / 19,251.38-28,874.85-5,210.57

Finding the Fourth Proportional to 19,251.38, 28,874.85 and 5,210.57

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Solution

The fourth proportional to 19,251.38, 28,874.85 and 5,210.57 is: 7,815.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,251.38 : 28,874.85 = 5,210.57 : x
  2. Step 2: Convert to fraction form
    19,251.38/28,874.85 = 5,210.57/x
  3. Step 3: Cross multiply
    19,251.38x = 28,874.85 × 5,210.57
  4. Step 4: Simplify right side
    19,251.38x = 150,454,401.11
  5. Step 5: Solve for x
    x = 150,454,401.11/19,251.38
  6. Step 6: Final answer
    x = 7,815.25

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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.