Home / 21,864.96-32,769.75-13,964.43

Finding the Fourth Proportional to 21,864.96, 32,769.75 and 13,964.43

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Solution

The fourth proportional to 21,864.96, 32,769.75 and 13,964.43 is: 20,928.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,864.96 : 32,769.75 = 13,964.43 : x
  2. Step 2: Convert to fraction form
    21,864.96/32,769.75 = 13,964.43/x
  3. Step 3: Cross multiply
    21,864.96x = 32,769.75 × 13,964.43
  4. Step 4: Simplify right side
    21,864.96x = 457,610,879.99
  5. Step 5: Solve for x
    x = 457,610,879.99/21,864.96
  6. Step 6: Final answer
    x = 20,928.96

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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.