Home / 28,800.74-43,207.14-12,160.82

Finding the Fourth Proportional to 28,800.74, 43,207.14 and 12,160.82

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Solution

The fourth proportional to 28,800.74, 43,207.14 and 12,160.82 is: 18,243.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,800.74 : 43,207.14 = 12,160.82 : x
  2. Step 2: Convert to fraction form
    28,800.74/43,207.14 = 12,160.82/x
  3. Step 3: Cross multiply
    28,800.74x = 43,207.14 × 12,160.82
  4. Step 4: Simplify right side
    28,800.74x = 525,434,252.25
  5. Step 5: Solve for x
    x = 525,434,252.25/28,800.74
  6. Step 6: Final answer
    x = 18,243.78

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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.