Home / 21,336.89-32,005.80-5,542.53

Finding the Fourth Proportional to 21,336.89, 32,005.80 and 5,542.53

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Solution

The fourth proportional to 21,336.89, 32,005.80 and 5,542.53 is: 8,313.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,336.89 : 32,005.80 = 5,542.53 : x
  2. Step 2: Convert to fraction form
    21,336.89/32,005.80 = 5,542.53/x
  3. Step 3: Cross multiply
    21,336.89x = 32,005.80 × 5,542.53
  4. Step 4: Simplify right side
    21,336.89x = 177,392,986.65
  5. Step 5: Solve for x
    x = 177,392,986.65/21,336.89
  6. Step 6: Final answer
    x = 8,313.91

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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.