Home / 28,977.30-43,465.51-8,200.78

Finding the Fourth Proportional to 28,977.30, 43,465.51 and 8,200.78

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Solution

The fourth proportional to 28,977.30, 43,465.51 and 8,200.78 is: 12,301.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,977.30 : 43,465.51 = 8,200.78 : x
  2. Step 2: Convert to fraction form
    28,977.30/43,465.51 = 8,200.78/x
  3. Step 3: Cross multiply
    28,977.30x = 43,465.51 × 8,200.78
  4. Step 4: Simplify right side
    28,977.30x = 356,451,085.10
  5. Step 5: Solve for x
    x = 356,451,085.10/28,977.30
  6. Step 6: Final answer
    x = 12,301.05

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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.