Home / 28,518.46-39,359.19-15,945.82

Finding the Fourth Proportional to 28,518.46, 39,359.19 and 15,945.82

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Solution

The fourth proportional to 28,518.46, 39,359.19 and 15,945.82 is: 22,007.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,518.46 : 39,359.19 = 15,945.82 : x
  2. Step 2: Convert to fraction form
    28,518.46/39,359.19 = 15,945.82/x
  3. Step 3: Cross multiply
    28,518.46x = 39,359.19 × 15,945.82
  4. Step 4: Simplify right side
    28,518.46x = 627,614,559.09
  5. Step 5: Solve for x
    x = 627,614,559.09/28,518.46
  6. Step 6: Final answer
    x = 22,007.31

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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.