Home / 28,750.41-43,121.97-21,365.64

Finding the Fourth Proportional to 28,750.41, 43,121.97 and 21,365.64

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Solution

The fourth proportional to 28,750.41, 43,121.97 and 21,365.64 is: 32,045.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,750.41 : 43,121.97 = 21,365.64 : x
  2. Step 2: Convert to fraction form
    28,750.41/43,121.97 = 21,365.64/x
  3. Step 3: Cross multiply
    28,750.41x = 43,121.97 × 21,365.64
  4. Step 4: Simplify right side
    28,750.41x = 921,328,487.11
  5. Step 5: Solve for x
    x = 921,328,487.11/28,750.41
  6. Step 6: Final answer
    x = 32,045.75

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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.