Home / 43,279.92-64,927.78-19,905.75

Finding the Fourth Proportional to 43,279.92, 64,927.78 and 19,905.75

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Solution

The fourth proportional to 43,279.92, 64,927.78 and 19,905.75 is: 29,862.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,279.92 : 64,927.78 = 19,905.75 : x
  2. Step 2: Convert to fraction form
    43,279.92/64,927.78 = 19,905.75/x
  3. Step 3: Cross multiply
    43,279.92x = 64,927.78 × 19,905.75
  4. Step 4: Simplify right side
    43,279.92x = 1,292,436,106.97
  5. Step 5: Solve for x
    x = 1,292,436,106.97/43,279.92
  6. Step 6: Final answer
    x = 29,862.26

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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.