Home / 27,678.20-41,517.29-9,210.20

Finding the Fourth Proportional to 27,678.20, 41,517.29 and 9,210.20

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Solution

The fourth proportional to 27,678.20, 41,517.29 and 9,210.20 is: 13,815.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,678.20 : 41,517.29 = 9,210.20 : x
  2. Step 2: Convert to fraction form
    27,678.20/41,517.29 = 9,210.20/x
  3. Step 3: Cross multiply
    27,678.20x = 41,517.29 × 9,210.20
  4. Step 4: Simplify right side
    27,678.20x = 382,382,290.72
  5. Step 5: Solve for x
    x = 382,382,290.72/27,678.20
  6. Step 6: Final answer
    x = 13,815.29

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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.