Home / 21,882.79-32,828.96-7,091.38

Finding the Fourth Proportional to 21,882.79, 32,828.96 and 7,091.38

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Solution

The fourth proportional to 21,882.79, 32,828.96 and 7,091.38 is: 10,638.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,882.79 : 32,828.96 = 7,091.38 : x
  2. Step 2: Convert to fraction form
    21,882.79/32,828.96 = 7,091.38/x
  3. Step 3: Cross multiply
    21,882.79x = 32,828.96 × 7,091.38
  4. Step 4: Simplify right side
    21,882.79x = 232,802,630.36
  5. Step 5: Solve for x
    x = 232,802,630.36/21,882.79
  6. Step 6: Final answer
    x = 10,638.62

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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.