Home / 39,926.50-55,098.82-22,021.98

Finding the Fourth Proportional to 39,926.50, 55,098.82 and 22,021.98

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Solution

The fourth proportional to 39,926.50, 55,098.82 and 22,021.98 is: 30,390.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,926.50 : 55,098.82 = 22,021.98 : x
  2. Step 2: Convert to fraction form
    39,926.50/55,098.82 = 22,021.98/x
  3. Step 3: Cross multiply
    39,926.50x = 55,098.82 × 22,021.98
  4. Step 4: Simplify right side
    39,926.50x = 1,213,385,112.06
  5. Step 5: Solve for x
    x = 1,213,385,112.06/39,926.50
  6. Step 6: Final answer
    x = 30,390.47

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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.