Home / 18,736.40-28,110.24-5,589.20

Finding the Fourth Proportional to 18,736.40, 28,110.24 and 5,589.20

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Solution

The fourth proportional to 18,736.40, 28,110.24 and 5,589.20 is: 8,385.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,736.40 : 28,110.24 = 5,589.20 : x
  2. Step 2: Convert to fraction form
    18,736.40/28,110.24 = 5,589.20/x
  3. Step 3: Cross multiply
    18,736.40x = 28,110.24 × 5,589.20
  4. Step 4: Simplify right side
    18,736.40x = 157,113,753.41
  5. Step 5: Solve for x
    x = 157,113,753.41/18,736.40
  6. Step 6: Final answer
    x = 8,385.48

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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.