Home / 38,564.31-57,780.45-21,046.44

Finding the Fourth Proportional to 38,564.31, 57,780.45 and 21,046.44

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Solution

The fourth proportional to 38,564.31, 57,780.45 and 21,046.44 is: 31,533.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,564.31 : 57,780.45 = 21,046.44 : x
  2. Step 2: Convert to fraction form
    38,564.31/57,780.45 = 21,046.44/x
  3. Step 3: Cross multiply
    38,564.31x = 57,780.45 × 21,046.44
  4. Step 4: Simplify right side
    38,564.31x = 1,216,072,774.10
  5. Step 5: Solve for x
    x = 1,216,072,774.10/38,564.31
  6. Step 6: Final answer
    x = 31,533.63

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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.