Home / 38,888.25-53,665.94-21,892.78

Finding the Fourth Proportional to 38,888.25, 53,665.94 and 21,892.78

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Solution

The fourth proportional to 38,888.25, 53,665.94 and 21,892.78 is: 30,212.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,888.25 : 53,665.94 = 21,892.78 : x
  2. Step 2: Convert to fraction form
    38,888.25/53,665.94 = 21,892.78/x
  3. Step 3: Cross multiply
    38,888.25x = 53,665.94 × 21,892.78
  4. Step 4: Simplify right side
    38,888.25x = 1,174,896,739.73
  5. Step 5: Solve for x
    x = 1,174,896,739.73/38,888.25
  6. Step 6: Final answer
    x = 30,212.13

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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.