Home / 20,926.35-31,349.43-20,222.87

Finding the Fourth Proportional to 20,926.35, 31,349.43 and 20,222.87

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Solution

The fourth proportional to 20,926.35, 31,349.43 and 20,222.87 is: 30,295.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,926.35 : 31,349.43 = 20,222.87 : x
  2. Step 2: Convert to fraction form
    20,926.35/31,349.43 = 20,222.87/x
  3. Step 3: Cross multiply
    20,926.35x = 31,349.43 × 20,222.87
  4. Step 4: Simplify right side
    20,926.35x = 633,975,290.72
  5. Step 5: Solve for x
    x = 633,975,290.72/20,926.35
  6. Step 6: Final answer
    x = 30,295.55

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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.