Home / 20,612.23-30,894.86-12,274.63

Finding the Fourth Proportional to 20,612.23, 30,894.86 and 12,274.63

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Solution

The fourth proportional to 20,612.23, 30,894.86 and 12,274.63 is: 18,397.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,612.23 : 30,894.86 = 12,274.63 : x
  2. Step 2: Convert to fraction form
    20,612.23/30,894.86 = 12,274.63/x
  3. Step 3: Cross multiply
    20,612.23x = 30,894.86 × 12,274.63
  4. Step 4: Simplify right side
    20,612.23x = 379,222,928.85
  5. Step 5: Solve for x
    x = 379,222,928.85/20,612.23
  6. Step 6: Final answer
    x = 18,397.96

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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.