Home / 39,649.30-54,715.89-21,743.84

Finding the Fourth Proportional to 39,649.30, 54,715.89 and 21,743.84

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Solution

The fourth proportional to 39,649.30, 54,715.89 and 21,743.84 is: 30,006.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,649.30 : 54,715.89 = 21,743.84 : x
  2. Step 2: Convert to fraction form
    39,649.30/54,715.89 = 21,743.84/x
  3. Step 3: Cross multiply
    39,649.30x = 54,715.89 × 21,743.84
  4. Step 4: Simplify right side
    39,649.30x = 1,189,733,557.62
  5. Step 5: Solve for x
    x = 1,189,733,557.62/39,649.30
  6. Step 6: Final answer
    x = 30,006.42

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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.