Home / 39,166.72-54,049.52-21,261.76

Finding the Fourth Proportional to 39,166.72, 54,049.52 and 21,261.76

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Solution

The fourth proportional to 39,166.72, 54,049.52 and 21,261.76 is: 29,340.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,166.72 : 54,049.52 = 21,261.76 : x
  2. Step 2: Convert to fraction form
    39,166.72/54,049.52 = 21,261.76/x
  3. Step 3: Cross multiply
    39,166.72x = 54,049.52 × 21,261.76
  4. Step 4: Simplify right side
    39,166.72x = 1,149,187,922.36
  5. Step 5: Solve for x
    x = 1,149,187,922.36/39,166.72
  6. Step 6: Final answer
    x = 29,340.93

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1.5x scale

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.