Home / 39,876.66-59,812.83-12,172.50

Finding the Fourth Proportional to 39,876.66, 59,812.83 and 12,172.50

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Solution

The fourth proportional to 39,876.66, 59,812.83 and 12,172.50 is: 18,258.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,876.66 : 59,812.83 = 12,172.50 : x
  2. Step 2: Convert to fraction form
    39,876.66/59,812.83 = 12,172.50/x
  3. Step 3: Cross multiply
    39,876.66x = 59,812.83 × 12,172.50
  4. Step 4: Simplify right side
    39,876.66x = 728,071,673.18
  5. Step 5: Solve for x
    x = 728,071,673.18/39,876.66
  6. Step 6: Final answer
    x = 18,258.09

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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.