Home / 39,926.78-55,099.30-22,022.40

Finding the Fourth Proportional to 39,926.78, 55,099.30 and 22,022.40

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Solution

The fourth proportional to 39,926.78, 55,099.30 and 22,022.40 is: 30,391.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,926.78 : 55,099.30 = 22,022.40 : x
  2. Step 2: Convert to fraction form
    39,926.78/55,099.30 = 22,022.40/x
  3. Step 3: Cross multiply
    39,926.78x = 55,099.30 × 22,022.40
  4. Step 4: Simplify right side
    39,926.78x = 1,213,418,824.32
  5. Step 5: Solve for x
    x = 1,213,418,824.32/39,926.78
  6. Step 6: Final answer
    x = 30,391.10

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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.