Home / 28,892.10-43,338.15-8,112.90

Finding the Fourth Proportional to 28,892.10, 43,338.15 and 8,112.90

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Solution

The fourth proportional to 28,892.10, 43,338.15 and 8,112.90 is: 12,169.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,892.10 : 43,338.15 = 8,112.90 : x
  2. Step 2: Convert to fraction form
    28,892.10/43,338.15 = 8,112.90/x
  3. Step 3: Cross multiply
    28,892.10x = 43,338.15 × 8,112.90
  4. Step 4: Simplify right side
    28,892.10x = 351,598,077.14
  5. Step 5: Solve for x
    x = 351,598,077.14/28,892.10
  6. Step 6: Final answer
    x = 12,169.35

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1.5x scale

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.