Home / 31,656.83-43,692.46-20,340.62

Finding the Fourth Proportional to 31,656.83, 43,692.46 and 20,340.62

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Solution

The fourth proportional to 31,656.83, 43,692.46 and 20,340.62 is: 28,073.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,656.83 : 43,692.46 = 20,340.62 : x
  2. Step 2: Convert to fraction form
    31,656.83/43,692.46 = 20,340.62/x
  3. Step 3: Cross multiply
    31,656.83x = 43,692.46 × 20,340.62
  4. Step 4: Simplify right side
    31,656.83x = 888,731,734.67
  5. Step 5: Solve for x
    x = 888,731,734.67/31,656.83
  6. Step 6: Final answer
    x = 28,073.94

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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.