Home / 43,169.76-64,709.28-19,776.96

Finding the Fourth Proportional to 43,169.76, 64,709.28 and 19,776.96

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Solution

The fourth proportional to 43,169.76, 64,709.28 and 19,776.96 is: 29,644.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,169.76 : 64,709.28 = 19,776.96 : x
  2. Step 2: Convert to fraction form
    43,169.76/64,709.28 = 19,776.96/x
  3. Step 3: Cross multiply
    43,169.76x = 64,709.28 × 19,776.96
  4. Step 4: Simplify right side
    43,169.76x = 1,279,752,842.19
  5. Step 5: Solve for x
    x = 1,279,752,842.19/43,169.76
  6. Step 6: Final answer
    x = 29,644.66

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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.