Home / 38,972.00-53,781.30-21,067.02

Finding the Fourth Proportional to 38,972.00, 53,781.30 and 21,067.02

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Solution

The fourth proportional to 38,972.00, 53,781.30 and 21,067.02 is: 29,072.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,972.00 : 53,781.30 = 21,067.02 : x
  2. Step 2: Convert to fraction form
    38,972.00/53,781.30 = 21,067.02/x
  3. Step 3: Cross multiply
    38,972.00x = 53,781.30 × 21,067.02
  4. Step 4: Simplify right side
    38,972.00x = 1,133,011,722.73
  5. Step 5: Solve for x
    x = 1,133,011,722.73/38,972.00
  6. Step 6: Final answer
    x = 29,072.45

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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.