Home / 21,141.22-31,709.30-5,560.06

Finding the Fourth Proportional to 21,141.22, 31,709.30 and 5,560.06

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Solution

The fourth proportional to 21,141.22, 31,709.30 and 5,560.06 is: 8,339.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,141.22 : 31,709.30 = 5,560.06 : x
  2. Step 2: Convert to fraction form
    21,141.22/31,709.30 = 5,560.06/x
  3. Step 3: Cross multiply
    21,141.22x = 31,709.30 × 5,560.06
  4. Step 4: Simplify right side
    21,141.22x = 176,305,465.91
  5. Step 5: Solve for x
    x = 176,305,465.91/21,141.22
  6. Step 6: Final answer
    x = 8,339.42

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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.