Home / 20,205.46-30,274.76-10,331.15

Finding the Fourth Proportional to 20,205.46, 30,274.76 and 10,331.15

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Solution

The fourth proportional to 20,205.46, 30,274.76 and 10,331.15 is: 15,479.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,205.46 : 30,274.76 = 10,331.15 : x
  2. Step 2: Convert to fraction form
    20,205.46/30,274.76 = 10,331.15/x
  3. Step 3: Cross multiply
    20,205.46x = 30,274.76 × 10,331.15
  4. Step 4: Simplify right side
    20,205.46x = 312,773,086.77
  5. Step 5: Solve for x
    x = 312,773,086.77/20,205.46
  6. Step 6: Final answer
    x = 15,479.63

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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.