Home / 27,409.20-41,115.15-14,287.20

Finding the Fourth Proportional to 27,409.20, 41,115.15 and 14,287.20

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Solution

The fourth proportional to 27,409.20, 41,115.15 and 14,287.20 is: 21,431.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,409.20 : 41,115.15 = 14,287.20 : x
  2. Step 2: Convert to fraction form
    27,409.20/41,115.15 = 14,287.20/x
  3. Step 3: Cross multiply
    27,409.20x = 41,115.15 × 14,287.20
  4. Step 4: Simplify right side
    27,409.20x = 587,420,371.08
  5. Step 5: Solve for x
    x = 587,420,371.08/27,409.20
  6. Step 6: Final answer
    x = 21,431.50

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Half scale
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Double scale
Find fourth proportional to 27,410.20, 41,116.65 and 14,288.20
Similar ratio
Find fourth proportional to 41,113.80, 61,672.73 and 21,430.80
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.