Home / 28,442.56-42,379.40-25,338.64

Finding the Fourth Proportional to 28,442.56, 42,379.40 and 25,338.64

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Solution

The fourth proportional to 28,442.56, 42,379.40 and 25,338.64 is: 37,754.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,442.56 : 42,379.40 = 25,338.64 : x
  2. Step 2: Convert to fraction form
    28,442.56/42,379.40 = 25,338.64/x
  3. Step 3: Cross multiply
    28,442.56x = 42,379.40 × 25,338.64
  4. Step 4: Simplify right side
    28,442.56x = 1,073,836,360.02
  5. Step 5: Solve for x
    x = 1,073,836,360.02/28,442.56
  6. Step 6: Final answer
    x = 37,754.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.