Home / 30,082.74-41,475.69-20,634.90

Finding the Fourth Proportional to 30,082.74, 41,475.69 and 20,634.90

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Solution

The fourth proportional to 30,082.74, 41,475.69 and 20,634.90 is: 28,449.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,082.74 : 41,475.69 = 20,634.90 : x
  2. Step 2: Convert to fraction form
    30,082.74/41,475.69 = 20,634.90/x
  3. Step 3: Cross multiply
    30,082.74x = 41,475.69 × 20,634.90
  4. Step 4: Simplify right side
    30,082.74x = 855,846,715.58
  5. Step 5: Solve for x
    x = 855,846,715.58/30,082.74
  6. Step 6: Final answer
    x = 28,449.76

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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.