Home / 38,661.96-53,357.25-21,669.08

Finding the Fourth Proportional to 38,661.96, 53,357.25 and 21,669.08

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Solution

The fourth proportional to 38,661.96, 53,357.25 and 21,669.08 is: 29,905.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,661.96 : 53,357.25 = 21,669.08 : x
  2. Step 2: Convert to fraction form
    38,661.96/53,357.25 = 21,669.08/x
  3. Step 3: Cross multiply
    38,661.96x = 53,357.25 × 21,669.08
  4. Step 4: Simplify right side
    38,661.96x = 1,156,202,252.04
  5. Step 5: Solve for x
    x = 1,156,202,252.04/38,661.96
  6. Step 6: Final answer
    x = 29,905.42

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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.