Home / 28,920.96-43,380.84-9,199.56

Finding the Fourth Proportional to 28,920.96, 43,380.84 and 9,199.56

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Solution

The fourth proportional to 28,920.96, 43,380.84 and 9,199.56 is: 13,799.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,920.96 : 43,380.84 = 9,199.56 : x
  2. Step 2: Convert to fraction form
    28,920.96/43,380.84 = 9,199.56/x
  3. Step 3: Cross multiply
    28,920.96x = 43,380.84 × 9,199.56
  4. Step 4: Simplify right side
    28,920.96x = 399,084,640.43
  5. Step 5: Solve for x
    x = 399,084,640.43/28,920.96
  6. Step 6: Final answer
    x = 13,799.15

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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.