Home / 38,788.15-53,523.57-21,791.11

Finding the Fourth Proportional to 38,788.15, 53,523.57 and 21,791.11

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Solution

The fourth proportional to 38,788.15, 53,523.57 and 21,791.11 is: 30,069.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,788.15 : 53,523.57 = 21,791.11 : x
  2. Step 2: Convert to fraction form
    38,788.15/53,523.57 = 21,791.11/x
  3. Step 3: Cross multiply
    38,788.15x = 53,523.57 × 21,791.11
  4. Step 4: Simplify right side
    38,788.15x = 1,166,338,001.46
  5. Step 5: Solve for x
    x = 1,166,338,001.46/38,788.15
  6. Step 6: Final answer
    x = 30,069.44

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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.