Home / 20,161.44-30,260.88-10,307.76

Finding the Fourth Proportional to 20,161.44, 30,260.88 and 10,307.76

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Solution

The fourth proportional to 20,161.44, 30,260.88 and 10,307.76 is: 15,471.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161.44 : 30,260.88 = 10,307.76 : x
  2. Step 2: Convert to fraction form
    20,161.44/30,260.88 = 10,307.76/x
  3. Step 3: Cross multiply
    20,161.44x = 30,260.88 × 10,307.76
  4. Step 4: Simplify right side
    20,161.44x = 311,921,888.43
  5. Step 5: Solve for x
    x = 311,921,888.43/20,161.44
  6. Step 6: Final answer
    x = 15,471.21

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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.