Home / 26,871.77-40,231.61-20,539.40

Finding the Fourth Proportional to 26,871.77, 40,231.61 and 20,539.40

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Solution

The fourth proportional to 26,871.77, 40,231.61 and 20,539.40 is: 30,750.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,871.77 : 40,231.61 = 20,539.40 : x
  2. Step 2: Convert to fraction form
    26,871.77/40,231.61 = 20,539.40/x
  3. Step 3: Cross multiply
    26,871.77x = 40,231.61 × 20,539.40
  4. Step 4: Simplify right side
    26,871.77x = 826,332,826.58
  5. Step 5: Solve for x
    x = 826,332,826.58/26,871.77
  6. Step 6: Final answer
    x = 30,750.97

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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.