Home / 36,138.24-49,869.36-20,222.64

Finding the Fourth Proportional to 36,138.24, 49,869.36 and 20,222.64

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Solution

The fourth proportional to 36,138.24, 49,869.36 and 20,222.64 is: 27,906.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,138.24 : 49,869.36 = 20,222.64 : x
  2. Step 2: Convert to fraction form
    36,138.24/49,869.36 = 20,222.64/x
  3. Step 3: Cross multiply
    36,138.24x = 49,869.36 × 20,222.64
  4. Step 4: Simplify right side
    36,138.24x = 1,008,490,114.31
  5. Step 5: Solve for x
    x = 1,008,490,114.31/36,138.24
  6. Step 6: Final answer
    x = 27,906.45

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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.