Home / 28,723.20-43,084.80-9,001.76

Finding the Fourth Proportional to 28,723.20, 43,084.80 and 9,001.76

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Solution

The fourth proportional to 28,723.20, 43,084.80 and 9,001.76 is: 13,502.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,723.20 : 43,084.80 = 9,001.76 : x
  2. Step 2: Convert to fraction form
    28,723.20/43,084.80 = 9,001.76/x
  3. Step 3: Cross multiply
    28,723.20x = 43,084.80 × 9,001.76
  4. Step 4: Simplify right side
    28,723.20x = 387,838,813.82
  5. Step 5: Solve for x
    x = 387,838,813.82/28,723.20
  6. Step 6: Final answer
    x = 13,502.63

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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.