Home / 33,981.81-50,972.75-12,916.90

Finding the Fourth Proportional to 33,981.81, 50,972.75 and 12,916.90

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Solution

The fourth proportional to 33,981.81, 50,972.75 and 12,916.90 is: 19,375.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,981.81 : 50,972.75 = 12,916.90 : x
  2. Step 2: Convert to fraction form
    33,981.81/50,972.75 = 12,916.90/x
  3. Step 3: Cross multiply
    33,981.81x = 50,972.75 × 12,916.90
  4. Step 4: Simplify right side
    33,981.81x = 658,409,914.48
  5. Step 5: Solve for x
    x = 658,409,914.48/33,981.81
  6. Step 6: Final answer
    x = 19,375.36

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1.5x scale

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.