Home / 21,581.79-32,351.92-11,056.79

Finding the Fourth Proportional to 21,581.79, 32,351.92 and 11,056.79

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Solution

The fourth proportional to 21,581.79, 32,351.92 and 11,056.79 is: 16,574.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,581.79 : 32,351.92 = 11,056.79 : x
  2. Step 2: Convert to fraction form
    21,581.79/32,351.92 = 11,056.79/x
  3. Step 3: Cross multiply
    21,581.79x = 32,351.92 × 11,056.79
  4. Step 4: Simplify right side
    21,581.79x = 357,708,318.99
  5. Step 5: Solve for x
    x = 357,708,318.99/21,581.79
  6. Step 6: Final answer
    x = 16,574.54

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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.