Home / 28,884.20-43,326.30-8,107.70

Finding the Fourth Proportional to 28,884.20, 43,326.30 and 8,107.70

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Solution

The fourth proportional to 28,884.20, 43,326.30 and 8,107.70 is: 12,161.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,884.20 : 43,326.30 = 8,107.70 : x
  2. Step 2: Convert to fraction form
    28,884.20/43,326.30 = 8,107.70/x
  3. Step 3: Cross multiply
    28,884.20x = 43,326.30 × 8,107.70
  4. Step 4: Simplify right side
    28,884.20x = 351,276,642.51
  5. Step 5: Solve for x
    x = 351,276,642.51/28,884.20
  6. Step 6: Final answer
    x = 12,161.55

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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.