Home / 38,654.57-53,342.37-21,659.53

Finding the Fourth Proportional to 38,654.57, 53,342.37 and 21,659.53

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Solution

The fourth proportional to 38,654.57, 53,342.37 and 21,659.53 is: 29,889.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,654.57 : 53,342.37 = 21,659.53 : x
  2. Step 2: Convert to fraction form
    38,654.57/53,342.37 = 21,659.53/x
  3. Step 3: Cross multiply
    38,654.57x = 53,342.37 × 21,659.53
  4. Step 4: Simplify right side
    38,654.57x = 1,155,370,540.84
  5. Step 5: Solve for x
    x = 1,155,370,540.84/38,654.57
  6. Step 6: Final answer
    x = 29,889.63

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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.