Home / 39,703.86-54,791.43-21,800.02

Finding the Fourth Proportional to 39,703.86, 54,791.43 and 21,800.02

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Solution

The fourth proportional to 39,703.86, 54,791.43 and 21,800.02 is: 30,084.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,703.86 : 54,791.43 = 21,800.02 : x
  2. Step 2: Convert to fraction form
    39,703.86/54,791.43 = 21,800.02/x
  3. Step 3: Cross multiply
    39,703.86x = 54,791.43 × 21,800.02
  4. Step 4: Simplify right side
    39,703.86x = 1,194,454,269.83
  5. Step 5: Solve for x
    x = 1,194,454,269.83/39,703.86
  6. Step 6: Final answer
    x = 30,084.09

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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.