Home / 39,700.92-54,784.81-21,795.82

Finding the Fourth Proportional to 39,700.92, 54,784.81 and 21,795.82

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Solution

The fourth proportional to 39,700.92, 54,784.81 and 21,795.82 is: 30,076.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,700.92 : 54,784.81 = 21,795.82 : x
  2. Step 2: Convert to fraction form
    39,700.92/54,784.81 = 21,795.82/x
  3. Step 3: Cross multiply
    39,700.92x = 54,784.81 × 21,795.82
  4. Step 4: Simplify right side
    39,700.92x = 1,194,079,747.78
  5. Step 5: Solve for x
    x = 1,194,079,747.78/39,700.92
  6. Step 6: Final answer
    x = 30,076.88

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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.