Home / 38,933.38-53,728.05-21,028.38

Finding the Fourth Proportional to 38,933.38, 53,728.05 and 21,028.38

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Solution

The fourth proportional to 38,933.38, 53,728.05 and 21,028.38 is: 29,019.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,933.38 : 53,728.05 = 21,028.38 : x
  2. Step 2: Convert to fraction form
    38,933.38/53,728.05 = 21,028.38/x
  3. Step 3: Cross multiply
    38,933.38x = 53,728.05 × 21,028.38
  4. Step 4: Simplify right side
    38,933.38x = 1,129,813,852.06
  5. Step 5: Solve for x
    x = 1,129,813,852.06/38,933.38
  6. Step 6: Final answer
    x = 29,019.16

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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.