Home / 18,728.28-28,092.41-5,580.31

Finding the Fourth Proportional to 18,728.28, 28,092.41 and 5,580.31

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Solution

The fourth proportional to 18,728.28, 28,092.41 and 5,580.31 is: 8,370.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,728.28 : 28,092.41 = 5,580.31 : x
  2. Step 2: Convert to fraction form
    18,728.28/28,092.41 = 5,580.31/x
  3. Step 3: Cross multiply
    18,728.28x = 28,092.41 × 5,580.31
  4. Step 4: Simplify right side
    18,728.28x = 156,764,356.45
  5. Step 5: Solve for x
    x = 156,764,356.45/18,728.28
  6. Step 6: Final answer
    x = 8,370.46

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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.