Home / 18,824.40-28,242.24-5,677.20

Finding the Fourth Proportional to 18,824.40, 28,242.24 and 5,677.20

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Solution

The fourth proportional to 18,824.40, 28,242.24 and 5,677.20 is: 8,517.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,824.40 : 28,242.24 = 5,677.20 : x
  2. Step 2: Convert to fraction form
    18,824.40/28,242.24 = 5,677.20/x
  3. Step 3: Cross multiply
    18,824.40x = 28,242.24 × 5,677.20
  4. Step 4: Simplify right side
    18,824.40x = 160,336,844.93
  5. Step 5: Solve for x
    x = 160,336,844.93/18,824.40
  6. Step 6: Final answer
    x = 8,517.50

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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.