Home / 28,750.80-42,872.28-25,255.14

Finding the Fourth Proportional to 28,750.80, 42,872.28 and 25,255.14

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Solution

The fourth proportional to 28,750.80, 42,872.28 and 25,255.14 is: 37,659.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,750.80 : 42,872.28 = 25,255.14 : x
  2. Step 2: Convert to fraction form
    28,750.80/42,872.28 = 25,255.14/x
  3. Step 3: Cross multiply
    28,750.80x = 42,872.28 × 25,255.14
  4. Step 4: Simplify right side
    28,750.80x = 1,082,745,433.52
  5. Step 5: Solve for x
    x = 1,082,745,433.52/28,750.80
  6. Step 6: Final answer
    x = 37,659.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.