Home / 18,651.20-27,970.28-5,500.08

Finding the Fourth Proportional to 18,651.20, 27,970.28 and 5,500.08

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Solution

The fourth proportional to 18,651.20, 27,970.28 and 5,500.08 is: 8,248.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,651.20 : 27,970.28 = 5,500.08 : x
  2. Step 2: Convert to fraction form
    18,651.20/27,970.28 = 5,500.08/x
  3. Step 3: Cross multiply
    18,651.20x = 27,970.28 × 5,500.08
  4. Step 4: Simplify right side
    18,651.20x = 153,838,777.62
  5. Step 5: Solve for x
    x = 153,838,777.62/18,651.20
  6. Step 6: Final answer
    x = 8,248.20

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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.