Home / 28,865.60-43,315.52-10,399.04

Finding the Fourth Proportional to 28,865.60, 43,315.52 and 10,399.04

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Solution

The fourth proportional to 28,865.60, 43,315.52 and 10,399.04 is: 15,604.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,865.60 : 43,315.52 = 10,399.04 : x
  2. Step 2: Convert to fraction form
    28,865.60/43,315.52 = 10,399.04/x
  3. Step 3: Cross multiply
    28,865.60x = 43,315.52 × 10,399.04
  4. Step 4: Simplify right side
    28,865.60x = 450,439,825.10
  5. Step 5: Solve for x
    x = 450,439,825.10/28,865.60
  6. Step 6: Final answer
    x = 15,604.73

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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.