Home / 28,432.62-42,667.29-12,850.38

Finding the Fourth Proportional to 28,432.62, 42,667.29 and 12,850.38

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Solution

The fourth proportional to 28,432.62, 42,667.29 and 12,850.38 is: 19,283.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,432.62 : 42,667.29 = 12,850.38 : x
  2. Step 2: Convert to fraction form
    28,432.62/42,667.29 = 12,850.38/x
  3. Step 3: Cross multiply
    28,432.62x = 42,667.29 × 12,850.38
  4. Step 4: Simplify right side
    28,432.62x = 548,290,890.07
  5. Step 5: Solve for x
    x = 548,290,890.07/28,432.62
  6. Step 6: Final answer
    x = 19,283.87

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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.