Home / 21,558.40-32,338.96-6,767.88

Finding the Fourth Proportional to 21,558.40, 32,338.96 and 6,767.88

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Solution

The fourth proportional to 21,558.40, 32,338.96 and 6,767.88 is: 10,152.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,558.40 : 32,338.96 = 6,767.88 : x
  2. Step 2: Convert to fraction form
    21,558.40/32,338.96 = 6,767.88/x
  3. Step 3: Cross multiply
    21,558.40x = 32,338.96 × 6,767.88
  4. Step 4: Simplify right side
    21,558.40x = 218,866,200.60
  5. Step 5: Solve for x
    x = 218,866,200.60/21,558.40
  6. Step 6: Final answer
    x = 10,152.25

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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.