Home / 20,908.64-31,352.88-11,059.04

Finding the Fourth Proportional to 20,908.64, 31,352.88 and 11,059.04

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Solution

The fourth proportional to 20,908.64, 31,352.88 and 11,059.04 is: 16,583.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,908.64 : 31,352.88 = 11,059.04 : x
  2. Step 2: Convert to fraction form
    20,908.64/31,352.88 = 11,059.04/x
  3. Step 3: Cross multiply
    20,908.64x = 31,352.88 × 11,059.04
  4. Step 4: Simplify right side
    20,908.64x = 346,732,754.04
  5. Step 5: Solve for x
    x = 346,732,754.04/20,908.64
  6. Step 6: Final answer
    x = 16,583.23

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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.