Home / 27,316.20-40,990.20-11,520.24

Finding the Fourth Proportional to 27,316.20, 40,990.20 and 11,520.24

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Solution

The fourth proportional to 27,316.20, 40,990.20 and 11,520.24 is: 17,287.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,316.20 : 40,990.20 = 11,520.24 : x
  2. Step 2: Convert to fraction form
    27,316.20/40,990.20 = 11,520.24/x
  3. Step 3: Cross multiply
    27,316.20x = 40,990.20 × 11,520.24
  4. Step 4: Simplify right side
    27,316.20x = 472,216,941.65
  5. Step 5: Solve for x
    x = 472,216,941.65/27,316.20
  6. Step 6: Final answer
    x = 17,287.07

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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.