Home / 28,793.10-43,165.65-12,165.90

Finding the Fourth Proportional to 28,793.10, 43,165.65 and 12,165.90

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Solution

The fourth proportional to 28,793.10, 43,165.65 and 12,165.90 is: 18,238.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,793.10 : 43,165.65 = 12,165.90 : x
  2. Step 2: Convert to fraction form
    28,793.10/43,165.65 = 12,165.90/x
  3. Step 3: Cross multiply
    28,793.10x = 43,165.65 × 12,165.90
  4. Step 4: Simplify right side
    28,793.10x = 525,148,981.34
  5. Step 5: Solve for x
    x = 525,148,981.34/28,793.10
  6. Step 6: Final answer
    x = 18,238.71

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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.