Home / 43,309.38-64,965.90-13,726.56

Finding the Fourth Proportional to 43,309.38, 64,965.90 and 13,726.56

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Solution

The fourth proportional to 43,309.38, 64,965.90 and 13,726.56 is: 20,590.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,309.38 : 64,965.90 = 13,726.56 : x
  2. Step 2: Convert to fraction form
    43,309.38/64,965.90 = 13,726.56/x
  3. Step 3: Cross multiply
    43,309.38x = 64,965.90 × 13,726.56
  4. Step 4: Simplify right side
    43,309.38x = 891,758,542.19
  5. Step 5: Solve for x
    x = 891,758,542.19/43,309.38
  6. Step 6: Final answer
    x = 20,590.42

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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.