Home / 38,208.70-57,318.81-11,915.50

Finding the Fourth Proportional to 38,208.70, 57,318.81 and 11,915.50

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Solution

The fourth proportional to 38,208.70, 57,318.81 and 11,915.50 is: 17,875.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,208.70 : 57,318.81 = 11,915.50 : x
  2. Step 2: Convert to fraction form
    38,208.70/57,318.81 = 11,915.50/x
  3. Step 3: Cross multiply
    38,208.70x = 57,318.81 × 11,915.50
  4. Step 4: Simplify right side
    38,208.70x = 682,982,280.56
  5. Step 5: Solve for x
    x = 682,982,280.56/38,208.70
  6. Step 6: Final answer
    x = 17,875.05

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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.