Home / 28,517.94-39,353.85-20,032.38

Finding the Fourth Proportional to 28,517.94, 39,353.85 and 20,032.38

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Solution

The fourth proportional to 28,517.94, 39,353.85 and 20,032.38 is: 27,644.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,517.94 : 39,353.85 = 20,032.38 : x
  2. Step 2: Convert to fraction form
    28,517.94/39,353.85 = 20,032.38/x
  3. Step 3: Cross multiply
    28,517.94x = 39,353.85 × 20,032.38
  4. Step 4: Simplify right side
    28,517.94x = 788,351,277.66
  5. Step 5: Solve for x
    x = 788,351,277.66/28,517.94
  6. Step 6: Final answer
    x = 27,644.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.