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Finding the Fourth Proportional to 39,893.57, 55,037.69 and 22,891.67

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Solution

The fourth proportional to 39,893.57, 55,037.69 and 22,891.67 is: 31,581.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,893.57 : 55,037.69 = 22,891.67 : x
  2. Step 2: Convert to fraction form
    39,893.57/55,037.69 = 22,891.67/x
  3. Step 3: Cross multiply
    39,893.57x = 55,037.69 × 22,891.67
  4. Step 4: Simplify right side
    39,893.57x = 1,259,904,539.63
  5. Step 5: Solve for x
    x = 1,259,904,539.63/39,893.57
  6. Step 6: Final answer
    x = 31,581.65

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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.