Home / 43,147.31-64,698.89-19,753.70

Finding the Fourth Proportional to 43,147.31, 64,698.89 and 19,753.70

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Solution

The fourth proportional to 43,147.31, 64,698.89 and 19,753.70 is: 29,620.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,147.31 : 64,698.89 = 19,753.70 : x
  2. Step 2: Convert to fraction form
    43,147.31/64,698.89 = 19,753.70/x
  3. Step 3: Cross multiply
    43,147.31x = 64,698.89 × 19,753.70
  4. Step 4: Simplify right side
    43,147.31x = 1,278,042,041.13
  5. Step 5: Solve for x
    x = 1,278,042,041.13/43,147.31
  6. Step 6: Final answer
    x = 29,620.44

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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.