Home / 29,072.80-43,631.28-21,301.92

Finding the Fourth Proportional to 29,072.80, 43,631.28 and 21,301.92

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Solution

The fourth proportional to 29,072.80, 43,631.28 and 21,301.92 is: 31,969.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,072.80 : 43,631.28 = 21,301.92 : x
  2. Step 2: Convert to fraction form
    29,072.80/43,631.28 = 21,301.92/x
  3. Step 3: Cross multiply
    29,072.80x = 43,631.28 × 21,301.92
  4. Step 4: Simplify right side
    29,072.80x = 929,430,036.06
  5. Step 5: Solve for x
    x = 929,430,036.06/29,072.80
  6. Step 6: Final answer
    x = 31,969.06

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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.