Home / 38,982.87-53,796.33-21,077.87

Finding the Fourth Proportional to 38,982.87, 53,796.33 and 21,077.87

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Solution

The fourth proportional to 38,982.87, 53,796.33 and 21,077.87 is: 29,087.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,982.87 : 53,796.33 = 21,077.87 : x
  2. Step 2: Convert to fraction form
    38,982.87/53,796.33 = 21,077.87/x
  3. Step 3: Cross multiply
    38,982.87x = 53,796.33 × 21,077.87
  4. Step 4: Simplify right side
    38,982.87x = 1,133,911,781.24
  5. Step 5: Solve for x
    x = 1,133,911,781.24/38,982.87
  6. Step 6: Final answer
    x = 29,087.44

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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.