Home / 43,013.20-64,538.01-20,843.08

Finding the Fourth Proportional to 43,013.20, 64,538.01 and 20,843.08

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Solution

The fourth proportional to 43,013.20, 64,538.01 and 20,843.08 is: 31,273.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,013.20 : 64,538.01 = 20,843.08 : x
  2. Step 2: Convert to fraction form
    43,013.20/64,538.01 = 20,843.08/x
  3. Step 3: Cross multiply
    43,013.20x = 64,538.01 × 20,843.08
  4. Step 4: Simplify right side
    43,013.20x = 1,345,170,905.47
  5. Step 5: Solve for x
    x = 1,345,170,905.47/43,013.20
  6. Step 6: Final answer
    x = 31,273.44

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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.