Home / 21,079.74-31,597.65-8,594.34

Finding the Fourth Proportional to 21,079.74, 31,597.65 and 8,594.34

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Solution

The fourth proportional to 21,079.74, 31,597.65 and 8,594.34 is: 12,882.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,079.74 : 31,597.65 = 8,594.34 : x
  2. Step 2: Convert to fraction form
    21,079.74/31,597.65 = 8,594.34/x
  3. Step 3: Cross multiply
    21,079.74x = 31,597.65 × 8,594.34
  4. Step 4: Simplify right side
    21,079.74x = 271,560,947.30
  5. Step 5: Solve for x
    x = 271,560,947.30/21,079.74
  6. Step 6: Final answer
    x = 12,882.56

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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.