Home / 39,869.45-59,812.61-11,787.29

Finding the Fourth Proportional to 39,869.45, 59,812.61 and 11,787.29

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Solution

The fourth proportional to 39,869.45, 59,812.61 and 11,787.29 is: 17,683.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,869.45 : 59,812.61 = 11,787.29 : x
  2. Step 2: Convert to fraction form
    39,869.45/59,812.61 = 11,787.29/x
  3. Step 3: Cross multiply
    39,869.45x = 59,812.61 × 11,787.29
  4. Step 4: Simplify right side
    39,869.45x = 705,028,221.73
  5. Step 5: Solve for x
    x = 705,028,221.73/39,869.45
  6. Step 6: Final answer
    x = 17,683.42

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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.