Home / 36,135.29-49,868.79-20,219.60

Finding the Fourth Proportional to 36,135.29, 49,868.79 and 20,219.60

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Solution

The fourth proportional to 36,135.29, 49,868.79 and 20,219.60 is: 27,904.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,135.29 : 49,868.79 = 20,219.60 : x
  2. Step 2: Convert to fraction form
    36,135.29/49,868.79 = 20,219.60/x
  3. Step 3: Cross multiply
    36,135.29x = 49,868.79 × 20,219.60
  4. Step 4: Simplify right side
    36,135.29x = 1,008,326,986.28
  5. Step 5: Solve for x
    x = 1,008,326,986.28/36,135.29
  6. Step 6: Final answer
    x = 27,904.22

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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.