Home / 38,640.69-57,921.82-21,966.27

Finding the Fourth Proportional to 38,640.69, 57,921.82 and 21,966.27

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Solution

The fourth proportional to 38,640.69, 57,921.82 and 21,966.27 is: 32,927.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,640.69 : 57,921.82 = 21,966.27 : x
  2. Step 2: Convert to fraction form
    38,640.69/57,921.82 = 21,966.27/x
  3. Step 3: Cross multiply
    38,640.69x = 57,921.82 × 21,966.27
  4. Step 4: Simplify right side
    38,640.69x = 1,272,326,047.40
  5. Step 5: Solve for x
    x = 1,272,326,047.40/38,640.69
  6. Step 6: Final answer
    x = 32,927.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.