Home / 40,971.15-61,475.86-21,238.94

Finding the Fourth Proportional to 40,971.15, 61,475.86 and 21,238.94

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Solution

The fourth proportional to 40,971.15, 61,475.86 and 21,238.94 is: 31,868.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,971.15 : 61,475.86 = 21,238.94 : x
  2. Step 2: Convert to fraction form
    40,971.15/61,475.86 = 21,238.94/x
  3. Step 3: Cross multiply
    40,971.15x = 61,475.86 × 21,238.94
  4. Step 4: Simplify right side
    40,971.15x = 1,305,682,101.99
  5. Step 5: Solve for x
    x = 1,305,682,101.99/40,971.15
  6. Step 6: Final answer
    x = 31,868.33

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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.