Home / 28,319.44-42,480.12-7,542.96

Finding the Fourth Proportional to 28,319.44, 42,480.12 and 7,542.96

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Solution

The fourth proportional to 28,319.44, 42,480.12 and 7,542.96 is: 11,314.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,319.44 : 42,480.12 = 7,542.96 : x
  2. Step 2: Convert to fraction form
    28,319.44/42,480.12 = 7,542.96/x
  3. Step 3: Cross multiply
    28,319.44x = 42,480.12 × 7,542.96
  4. Step 4: Simplify right side
    28,319.44x = 320,425,845.96
  5. Step 5: Solve for x
    x = 320,425,845.96/28,319.44
  6. Step 6: Final answer
    x = 11,314.70

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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.