Home / 28,517.10-39,352.02-15,769.54

Finding the Fourth Proportional to 28,517.10, 39,352.02 and 15,769.54

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Solution

The fourth proportional to 28,517.10, 39,352.02 and 15,769.54 is: 21,761.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,517.10 : 39,352.02 = 15,769.54 : x
  2. Step 2: Convert to fraction form
    28,517.10/39,352.02 = 15,769.54/x
  3. Step 3: Cross multiply
    28,517.10x = 39,352.02 × 15,769.54
  4. Step 4: Simplify right side
    28,517.10x = 620,563,253.47
  5. Step 5: Solve for x
    x = 620,563,253.47/28,517.10
  6. Step 6: Final answer
    x = 21,761.09

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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.