Home / 28,806.66-43,362.84-20,543.85

Finding the Fourth Proportional to 28,806.66, 43,362.84 and 20,543.85

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Solution

The fourth proportional to 28,806.66, 43,362.84 and 20,543.85 is: 30,924.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,806.66 : 43,362.84 = 20,543.85 : x
  2. Step 2: Convert to fraction form
    28,806.66/43,362.84 = 20,543.85/x
  3. Step 3: Cross multiply
    28,806.66x = 43,362.84 × 20,543.85
  4. Step 4: Simplify right side
    28,806.66x = 890,839,680.53
  5. Step 5: Solve for x
    x = 890,839,680.53/28,806.66
  6. Step 6: Final answer
    x = 30,924.78

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.