Home / 43,013.70-64,538.76-20,843.58

Finding the Fourth Proportional to 43,013.70, 64,538.76 and 20,843.58

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Solution

The fourth proportional to 43,013.70, 64,538.76 and 20,843.58 is: 31,274.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,013.70 : 64,538.76 = 20,843.58 : x
  2. Step 2: Convert to fraction form
    43,013.70/64,538.76 = 20,843.58/x
  3. Step 3: Cross multiply
    43,013.70x = 64,538.76 × 20,843.58
  4. Step 4: Simplify right side
    43,013.70x = 1,345,218,807.16
  5. Step 5: Solve for x
    x = 1,345,218,807.16/43,013.70
  6. Step 6: Final answer
    x = 31,274.19

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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.