Home / 39,767.73-54,879.63-21,863.88

Finding the Fourth Proportional to 39,767.73, 54,879.63 and 21,863.88

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Solution

The fourth proportional to 39,767.73, 54,879.63 and 21,863.88 is: 30,172.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,767.73 : 54,879.63 = 21,863.88 : x
  2. Step 2: Convert to fraction form
    39,767.73/54,879.63 = 21,863.88/x
  3. Step 3: Cross multiply
    39,767.73x = 54,879.63 × 21,863.88
  4. Step 4: Simplify right side
    39,767.73x = 1,199,881,644.76
  5. Step 5: Solve for x
    x = 1,199,881,644.76/39,767.73
  6. Step 6: Final answer
    x = 30,172.24

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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.