Home / 38,876.94-53,648.82-21,881.52

Finding the Fourth Proportional to 38,876.94, 53,648.82 and 21,881.52

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Solution

The fourth proportional to 38,876.94, 53,648.82 and 21,881.52 is: 30,195.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,876.94 : 53,648.82 = 21,881.52 : x
  2. Step 2: Convert to fraction form
    38,876.94/53,648.82 = 21,881.52/x
  3. Step 3: Cross multiply
    38,876.94x = 53,648.82 × 21,881.52
  4. Step 4: Simplify right side
    38,876.94x = 1,173,917,727.81
  5. Step 5: Solve for x
    x = 1,173,917,727.81/38,876.94
  6. Step 6: Final answer
    x = 30,195.73

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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.