Home / 27,180.20-40,768.28-11,381.15

Finding the Fourth Proportional to 27,180.20, 40,768.28 and 11,381.15

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Solution

The fourth proportional to 27,180.20, 40,768.28 and 11,381.15 is: 17,070.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,180.20 : 40,768.28 = 11,381.15 : x
  2. Step 2: Convert to fraction form
    27,180.20/40,768.28 = 11,381.15/x
  3. Step 3: Cross multiply
    27,180.20x = 40,768.28 × 11,381.15
  4. Step 4: Simplify right side
    27,180.20x = 463,989,853.02
  5. Step 5: Solve for x
    x = 463,989,853.02/27,180.20
  6. Step 6: Final answer
    x = 17,070.88

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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.