Home / 20,634.79-30,954.24-7,488.19

Finding the Fourth Proportional to 20,634.79, 30,954.24 and 7,488.19

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Solution

The fourth proportional to 20,634.79, 30,954.24 and 7,488.19 is: 11,233.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,634.79 : 30,954.24 = 7,488.19 : x
  2. Step 2: Convert to fraction form
    20,634.79/30,954.24 = 7,488.19/x
  3. Step 3: Cross multiply
    20,634.79x = 30,954.24 × 7,488.19
  4. Step 4: Simplify right side
    20,634.79x = 231,791,230.43
  5. Step 5: Solve for x
    x = 231,791,230.43/20,634.79
  6. Step 6: Final answer
    x = 11,233.03

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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.