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Finding the Fourth Proportional to 36,145.93, 49,881.38 and 20,230.38

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Solution

The fourth proportional to 36,145.93, 49,881.38 and 20,230.38 is: 27,917.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,145.93 : 49,881.38 = 20,230.38 : x
  2. Step 2: Convert to fraction form
    36,145.93/49,881.38 = 20,230.38/x
  3. Step 3: Cross multiply
    36,145.93x = 49,881.38 × 20,230.38
  4. Step 4: Simplify right side
    36,145.93x = 1,009,119,171.17
  5. Step 5: Solve for x
    x = 1,009,119,171.17/36,145.93
  6. Step 6: Final answer
    x = 27,917.92

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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.