Home / 21,687.12-32,518.31-8,532.32

Finding the Fourth Proportional to 21,687.12, 32,518.31 and 8,532.32

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Solution

The fourth proportional to 21,687.12, 32,518.31 and 8,532.32 is: 12,793.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,687.12 : 32,518.31 = 8,532.32 : x
  2. Step 2: Convert to fraction form
    21,687.12/32,518.31 = 8,532.32/x
  3. Step 3: Cross multiply
    21,687.12x = 32,518.31 × 8,532.32
  4. Step 4: Simplify right side
    21,687.12x = 277,456,421.53
  5. Step 5: Solve for x
    x = 277,456,421.53/21,687.12
  6. Step 6: Final answer
    x = 12,793.60

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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.