Home / 28,919.66-43,352.85-10,189.49

Finding the Fourth Proportional to 28,919.66, 43,352.85 and 10,189.49

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Solution

The fourth proportional to 28,919.66, 43,352.85 and 10,189.49 is: 15,274.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,919.66 : 43,352.85 = 10,189.49 : x
  2. Step 2: Convert to fraction form
    28,919.66/43,352.85 = 10,189.49/x
  3. Step 3: Cross multiply
    28,919.66x = 43,352.85 × 10,189.49
  4. Step 4: Simplify right side
    28,919.66x = 441,743,431.55
  5. Step 5: Solve for x
    x = 441,743,431.55/28,919.66
  6. Step 6: Final answer
    x = 15,274.85

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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.