Home / 40,801.90-61,203.20-11,221.36

Finding the Fourth Proportional to 40,801.90, 61,203.20 and 11,221.36

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Solution

The fourth proportional to 40,801.90, 61,203.20 and 11,221.36 is: 16,832.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,801.90 : 61,203.20 = 11,221.36 : x
  2. Step 2: Convert to fraction form
    40,801.90/61,203.20 = 11,221.36/x
  3. Step 3: Cross multiply
    40,801.90x = 61,203.20 × 11,221.36
  4. Step 4: Simplify right side
    40,801.90x = 686,783,103.37
  5. Step 5: Solve for x
    x = 686,783,103.37/40,801.90
  6. Step 6: Final answer
    x = 16,832.13

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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.