Home / 38,974.37-53,781.39-21,982.82

Finding the Fourth Proportional to 38,974.37, 53,781.39 and 21,982.82

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Solution

The fourth proportional to 38,974.37, 53,781.39 and 21,982.82 is: 30,334.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,974.37 : 53,781.39 = 21,982.82 : x
  2. Step 2: Convert to fraction form
    38,974.37/53,781.39 = 21,982.82/x
  3. Step 3: Cross multiply
    38,974.37x = 53,781.39 × 21,982.82
  4. Step 4: Simplify right side
    38,974.37x = 1,182,266,346.81
  5. Step 5: Solve for x
    x = 1,182,266,346.81/38,974.37
  6. Step 6: Final answer
    x = 30,334.46

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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.