Home / 26,866.92-40,283.10-12,819.36

Finding the Fourth Proportional to 26,866.92, 40,283.10 and 12,819.36

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Solution

The fourth proportional to 26,866.92, 40,283.10 and 12,819.36 is: 19,220.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,866.92 : 40,283.10 = 12,819.36 : x
  2. Step 2: Convert to fraction form
    26,866.92/40,283.10 = 12,819.36/x
  3. Step 3: Cross multiply
    26,866.92x = 40,283.10 × 12,819.36
  4. Step 4: Simplify right side
    26,866.92x = 516,403,560.82
  5. Step 5: Solve for x
    x = 516,403,560.82/26,866.92
  6. Step 6: Final answer
    x = 19,220.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.