Home / 38,288.54-57,424.50-11,989.82

Finding the Fourth Proportional to 38,288.54, 57,424.50 and 11,989.82

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Solution

The fourth proportional to 38,288.54, 57,424.50 and 11,989.82 is: 17,982.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,288.54 : 57,424.50 = 11,989.82 : x
  2. Step 2: Convert to fraction form
    38,288.54/57,424.50 = 11,989.82/x
  3. Step 3: Cross multiply
    38,288.54x = 57,424.50 × 11,989.82
  4. Step 4: Simplify right side
    38,288.54x = 688,509,418.59
  5. Step 5: Solve for x
    x = 688,509,418.59/38,288.54
  6. Step 6: Final answer
    x = 17,982.13

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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.