Home / 18,101.28-27,153.60-5,621.44

Finding the Fourth Proportional to 18,101.28, 27,153.60 and 5,621.44

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Solution

The fourth proportional to 18,101.28, 27,153.60 and 5,621.44 is: 8,432.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,101.28 : 27,153.60 = 5,621.44 : x
  2. Step 2: Convert to fraction form
    18,101.28/27,153.60 = 5,621.44/x
  3. Step 3: Cross multiply
    18,101.28x = 27,153.60 × 5,621.44
  4. Step 4: Simplify right side
    18,101.28x = 152,642,333.18
  5. Step 5: Solve for x
    x = 152,642,333.18/18,101.28
  6. Step 6: Final answer
    x = 8,432.68

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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.