Home / 28,517.80-39,356.34-15,942.52

Finding the Fourth Proportional to 28,517.80, 39,356.34 and 15,942.52

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Solution

The fourth proportional to 28,517.80, 39,356.34 and 15,942.52 is: 22,001.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,517.80 : 39,356.34 = 15,942.52 : x
  2. Step 2: Convert to fraction form
    28,517.80/39,356.34 = 15,942.52/x
  3. Step 3: Cross multiply
    28,517.80x = 39,356.34 × 15,942.52
  4. Step 4: Simplify right side
    28,517.80x = 627,439,237.58
  5. Step 5: Solve for x
    x = 627,439,237.58/28,517.80
  6. Step 6: Final answer
    x = 22,001.67

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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.