Home / 28,986.20-43,532.10-25,357.40

Finding the Fourth Proportional to 28,986.20, 43,532.10 and 25,357.40

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Solution

The fourth proportional to 28,986.20, 43,532.10 and 25,357.40 is: 38,082.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,986.20 : 43,532.10 = 25,357.40 : x
  2. Step 2: Convert to fraction form
    28,986.20/43,532.10 = 25,357.40/x
  3. Step 3: Cross multiply
    28,986.20x = 43,532.10 × 25,357.40
  4. Step 4: Simplify right side
    28,986.20x = 1,103,860,872.54
  5. Step 5: Solve for x
    x = 1,103,860,872.54/28,986.20
  6. Step 6: Final answer
    x = 38,082.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.