Home / 39,677.62-54,756.32-21,773.79

Finding the Fourth Proportional to 39,677.62, 54,756.32 and 21,773.79

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Solution

The fourth proportional to 39,677.62, 54,756.32 and 21,773.79 is: 30,048.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,677.62 : 54,756.32 = 21,773.79 : x
  2. Step 2: Convert to fraction form
    39,677.62/54,756.32 = 21,773.79/x
  3. Step 3: Cross multiply
    39,677.62x = 54,756.32 × 21,773.79
  4. Step 4: Simplify right side
    39,677.62x = 1,192,252,612.85
  5. Step 5: Solve for x
    x = 1,192,252,612.85/39,677.62
  6. Step 6: Final answer
    x = 30,048.49

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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.