Home / 31,824.95-43,893.09-20,495.38

Finding the Fourth Proportional to 31,824.95, 43,893.09 and 20,495.38

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Solution

The fourth proportional to 31,824.95, 43,893.09 and 20,495.38 is: 28,267.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,824.95 : 43,893.09 = 20,495.38 : x
  2. Step 2: Convert to fraction form
    31,824.95/43,893.09 = 20,495.38/x
  3. Step 3: Cross multiply
    31,824.95x = 43,893.09 × 20,495.38
  4. Step 4: Simplify right side
    31,824.95x = 899,605,531.49
  5. Step 5: Solve for x
    x = 899,605,531.49/31,824.95
  6. Step 6: Final answer
    x = 28,267.30

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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.