Home / 22,351.60-30,845.16-12,280.30

Finding the Fourth Proportional to 22,351.60, 30,845.16 and 12,280.30

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Solution

The fourth proportional to 22,351.60, 30,845.16 and 12,280.30 is: 16,946.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,351.60 : 30,845.16 = 12,280.30 : x
  2. Step 2: Convert to fraction form
    22,351.60/30,845.16 = 12,280.30/x
  3. Step 3: Cross multiply
    22,351.60x = 30,845.16 × 12,280.30
  4. Step 4: Simplify right side
    22,351.60x = 378,787,818.35
  5. Step 5: Solve for x
    x = 378,787,818.35/22,351.60
  6. Step 6: Final answer
    x = 16,946.79

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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.