Home / 39,376.68-54,338.63-21,472.04

Finding the Fourth Proportional to 39,376.68, 54,338.63 and 21,472.04

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Solution

The fourth proportional to 39,376.68, 54,338.63 and 21,472.04 is: 29,630.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,376.68 : 54,338.63 = 21,472.04 : x
  2. Step 2: Convert to fraction form
    39,376.68/54,338.63 = 21,472.04/x
  3. Step 3: Cross multiply
    39,376.68x = 54,338.63 × 21,472.04
  4. Step 4: Simplify right side
    39,376.68x = 1,166,760,857.85
  5. Step 5: Solve for x
    x = 1,166,760,857.85/39,376.68
  6. Step 6: Final answer
    x = 29,630.76

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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.