Home / 28,912.77-39,882.38-18,283.95

Finding the Fourth Proportional to 28,912.77, 39,882.38 and 18,283.95

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Solution

The fourth proportional to 28,912.77, 39,882.38 and 18,283.95 is: 25,220.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,912.77 : 39,882.38 = 18,283.95 : x
  2. Step 2: Convert to fraction form
    28,912.77/39,882.38 = 18,283.95/x
  3. Step 3: Cross multiply
    28,912.77x = 39,882.38 × 18,283.95
  4. Step 4: Simplify right side
    28,912.77x = 729,207,350.38
  5. Step 5: Solve for x
    x = 729,207,350.38/28,912.77
  6. Step 6: Final answer
    x = 25,220.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.