Home / 38,662.11-53,357.47-21,669.24

Finding the Fourth Proportional to 38,662.11, 53,357.47 and 21,669.24

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Solution

The fourth proportional to 38,662.11, 53,357.47 and 21,669.24 is: 29,905.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,662.11 : 53,357.47 = 21,669.24 : x
  2. Step 2: Convert to fraction form
    38,662.11/53,357.47 = 21,669.24/x
  3. Step 3: Cross multiply
    38,662.11x = 53,357.47 × 21,669.24
  4. Step 4: Simplify right side
    38,662.11x = 1,156,215,823.22
  5. Step 5: Solve for x
    x = 1,156,215,823.22/38,662.11
  6. Step 6: Final answer
    x = 29,905.66

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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.