Home / 28,644.44-39,545.78-19,081.76

Finding the Fourth Proportional to 28,644.44, 39,545.78 and 19,081.76

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Solution

The fourth proportional to 28,644.44, 39,545.78 and 19,081.76 is: 26,343.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,644.44 : 39,545.78 = 19,081.76 : x
  2. Step 2: Convert to fraction form
    28,644.44/39,545.78 = 19,081.76/x
  3. Step 3: Cross multiply
    28,644.44x = 39,545.78 × 19,081.76
  4. Step 4: Simplify right side
    28,644.44x = 754,602,789.84
  5. Step 5: Solve for x
    x = 754,602,789.84/28,644.44
  6. Step 6: Final answer
    x = 26,343.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.