Home / 36,421.13-54,631.73-20,827.82

Finding the Fourth Proportional to 36,421.13, 54,631.73 and 20,827.82

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Solution

The fourth proportional to 36,421.13, 54,631.73 and 20,827.82 is: 31,241.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,421.13 : 54,631.73 = 20,827.82 : x
  2. Step 2: Convert to fraction form
    36,421.13/54,631.73 = 20,827.82/x
  3. Step 3: Cross multiply
    36,421.13x = 54,631.73 × 20,827.82
  4. Step 4: Simplify right side
    36,421.13x = 1,137,859,838.73
  5. Step 5: Solve for x
    x = 1,137,859,838.73/36,421.13
  6. Step 6: Final answer
    x = 31,241.75

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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.