Home / 20,634.89-30,926.81-11,757.66

Finding the Fourth Proportional to 20,634.89, 30,926.81 and 11,757.66

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Solution

The fourth proportional to 20,634.89, 30,926.81 and 11,757.66 is: 17,621.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,634.89 : 30,926.81 = 11,757.66 : x
  2. Step 2: Convert to fraction form
    20,634.89/30,926.81 = 11,757.66/x
  3. Step 3: Cross multiply
    20,634.89x = 30,926.81 × 11,757.66
  4. Step 4: Simplify right side
    20,634.89x = 363,626,830.28
  5. Step 5: Solve for x
    x = 363,626,830.28/20,634.89
  6. Step 6: Final answer
    x = 17,621.95

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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.