Home / 18,727.20-28,094.45-5,579.28

Finding the Fourth Proportional to 18,727.20, 28,094.45 and 5,579.28

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Solution

The fourth proportional to 18,727.20, 28,094.45 and 5,579.28 is: 8,370.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,727.20 : 28,094.45 = 5,579.28 : x
  2. Step 2: Convert to fraction form
    18,727.20/28,094.45 = 5,579.28/x
  3. Step 3: Cross multiply
    18,727.20x = 28,094.45 × 5,579.28
  4. Step 4: Simplify right side
    18,727.20x = 156,746,775.10
  5. Step 5: Solve for x
    x = 156,746,775.10/18,727.20
  6. Step 6: Final answer
    x = 8,370.01

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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.