Home / 21,789.36-32,696.64-10,101.96

Finding the Fourth Proportional to 21,789.36, 32,696.64 and 10,101.96

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Solution

The fourth proportional to 21,789.36, 32,696.64 and 10,101.96 is: 15,158.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,789.36 : 32,696.64 = 10,101.96 : x
  2. Step 2: Convert to fraction form
    21,789.36/32,696.64 = 10,101.96/x
  3. Step 3: Cross multiply
    21,789.36x = 32,696.64 × 10,101.96
  4. Step 4: Simplify right side
    21,789.36x = 330,300,149.41
  5. Step 5: Solve for x
    x = 330,300,149.41/21,789.36
  6. Step 6: Final answer
    x = 15,158.78

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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.