Home / 39,638.58-54,700.62-21,733.74

Finding the Fourth Proportional to 39,638.58, 54,700.62 and 21,733.74

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Solution

The fourth proportional to 39,638.58, 54,700.62 and 21,733.74 is: 29,992.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,638.58 : 54,700.62 = 21,733.74 : x
  2. Step 2: Convert to fraction form
    39,638.58/54,700.62 = 21,733.74/x
  3. Step 3: Cross multiply
    39,638.58x = 54,700.62 × 21,733.74
  4. Step 4: Simplify right side
    39,638.58x = 1,188,849,052.92
  5. Step 5: Solve for x
    x = 1,188,849,052.92/39,638.58
  6. Step 6: Final answer
    x = 29,992.22

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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.