Home / 38,672.12-53,371.94-21,680.94

Finding the Fourth Proportional to 38,672.12, 53,371.94 and 21,680.94

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Solution

The fourth proportional to 38,672.12, 53,371.94 and 21,680.94 is: 29,922.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,672.12 : 53,371.94 = 21,680.94 : x
  2. Step 2: Convert to fraction form
    38,672.12/53,371.94 = 21,680.94/x
  3. Step 3: Cross multiply
    38,672.12x = 53,371.94 × 21,680.94
  4. Step 4: Simplify right side
    38,672.12x = 1,157,153,828.82
  5. Step 5: Solve for x
    x = 1,157,153,828.82/38,672.12
  6. Step 6: Final answer
    x = 29,922.17

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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.