Home / 21,558.35-32,340.57-6,768.46

Finding the Fourth Proportional to 21,558.35, 32,340.57 and 6,768.46

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Solution

The fourth proportional to 21,558.35, 32,340.57 and 6,768.46 is: 10,153.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,558.35 : 32,340.57 = 6,768.46 : x
  2. Step 2: Convert to fraction form
    21,558.35/32,340.57 = 6,768.46/x
  3. Step 3: Cross multiply
    21,558.35x = 32,340.57 × 6,768.46
  4. Step 4: Simplify right side
    21,558.35x = 218,895,869.47
  5. Step 5: Solve for x
    x = 218,895,869.47/21,558.35
  6. Step 6: Final answer
    x = 10,153.65

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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.