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Finding the Fourth Proportional to 32,012.58, 48,018.87 and 8,640.84

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Solution

The fourth proportional to 32,012.58, 48,018.87 and 8,640.84 is: 12,961.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,012.58 : 48,018.87 = 8,640.84 : x
  2. Step 2: Convert to fraction form
    32,012.58/48,018.87 = 8,640.84/x
  3. Step 3: Cross multiply
    32,012.58x = 48,018.87 × 8,640.84
  4. Step 4: Simplify right side
    32,012.58x = 414,923,372.65
  5. Step 5: Solve for x
    x = 414,923,372.65/32,012.58
  6. Step 6: Final answer
    x = 12,961.26

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Similar ratio
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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.