Home / 38,787.97-53,524.65-21,791.35

Finding the Fourth Proportional to 38,787.97, 53,524.65 and 21,791.35

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Solution

The fourth proportional to 38,787.97, 53,524.65 and 21,791.35 is: 30,070.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,787.97 : 53,524.65 = 21,791.35 : x
  2. Step 2: Convert to fraction form
    38,787.97/53,524.65 = 21,791.35/x
  3. Step 3: Cross multiply
    38,787.97x = 53,524.65 × 21,791.35
  4. Step 4: Simplify right side
    38,787.97x = 1,166,374,381.78
  5. Step 5: Solve for x
    x = 1,166,374,381.78/38,787.97
  6. Step 6: Final answer
    x = 30,070.52

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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.