Home / 28,223.20-42,336.56-7,446.72

Finding the Fourth Proportional to 28,223.20, 42,336.56 and 7,446.72

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Solution

The fourth proportional to 28,223.20, 42,336.56 and 7,446.72 is: 11,170.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,223.20 : 42,336.56 = 7,446.72 : x
  2. Step 2: Convert to fraction form
    28,223.20/42,336.56 = 7,446.72/x
  3. Step 3: Cross multiply
    28,223.20x = 42,336.56 × 7,446.72
  4. Step 4: Simplify right side
    28,223.20x = 315,268,508.08
  5. Step 5: Solve for x
    x = 315,268,508.08/28,223.20
  6. Step 6: Final answer
    x = 11,170.54

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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.