Home / 22,351.71-30,845.91-12,280.80

Finding the Fourth Proportional to 22,351.71, 30,845.91 and 12,280.80

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Solution

The fourth proportional to 22,351.71, 30,845.91 and 12,280.80 is: 16,947.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,351.71 : 30,845.91 = 12,280.80 : x
  2. Step 2: Convert to fraction form
    22,351.71/30,845.91 = 12,280.80/x
  3. Step 3: Cross multiply
    22,351.71x = 30,845.91 × 12,280.80
  4. Step 4: Simplify right side
    22,351.71x = 378,812,467.24
  5. Step 5: Solve for x
    x = 378,812,467.24/22,351.71
  6. Step 6: Final answer
    x = 16,947.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.