Home / 28,560.15-42,840.23-25,279.65

Finding the Fourth Proportional to 28,560.15, 42,840.23 and 25,279.65

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Solution

The fourth proportional to 28,560.15, 42,840.23 and 25,279.65 is: 37,919.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,560.15 : 42,840.23 = 25,279.65 : x
  2. Step 2: Convert to fraction form
    28,560.15/42,840.23 = 25,279.65/x
  3. Step 3: Cross multiply
    28,560.15x = 42,840.23 × 25,279.65
  4. Step 4: Simplify right side
    28,560.15x = 1,082,985,893.92
  5. Step 5: Solve for x
    x = 1,082,985,893.92/28,560.15
  6. Step 6: Final answer
    x = 37,919.48

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Similar ratio
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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.