Home / 28,689.20-43,033.04-8,977.04

Finding the Fourth Proportional to 28,689.20, 43,033.04 and 8,977.04

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Solution

The fourth proportional to 28,689.20, 43,033.04 and 8,977.04 is: 13,465.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,689.20 : 43,033.04 = 8,977.04 : x
  2. Step 2: Convert to fraction form
    28,689.20/43,033.04 = 8,977.04/x
  3. Step 3: Cross multiply
    28,689.20x = 43,033.04 × 8,977.04
  4. Step 4: Simplify right side
    28,689.20x = 386,309,321.40
  5. Step 5: Solve for x
    x = 386,309,321.40/28,689.20
  6. Step 6: Final answer
    x = 13,465.32

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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.