Home / 21,789.76-32,680.46-8,462.74

Finding the Fourth Proportional to 21,789.76, 32,680.46 and 8,462.74

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Solution

The fourth proportional to 21,789.76, 32,680.46 and 8,462.74 is: 12,692.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,789.76 : 32,680.46 = 8,462.74 : x
  2. Step 2: Convert to fraction form
    21,789.76/32,680.46 = 8,462.74/x
  3. Step 3: Cross multiply
    21,789.76x = 32,680.46 × 8,462.74
  4. Step 4: Simplify right side
    21,789.76x = 276,566,236.06
  5. Step 5: Solve for x
    x = 276,566,236.06/21,789.76
  6. Step 6: Final answer
    x = 12,692.49

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1.5x scale

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.