Home / 26,775.40-40,163.10-20,165.80

Finding the Fourth Proportional to 26,775.40, 40,163.10 and 20,165.80

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Solution

The fourth proportional to 26,775.40, 40,163.10 and 20,165.80 is: 30,248.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,775.40 : 40,163.10 = 20,165.80 : x
  2. Step 2: Convert to fraction form
    26,775.40/40,163.10 = 20,165.80/x
  3. Step 3: Cross multiply
    26,775.40x = 40,163.10 × 20,165.80
  4. Step 4: Simplify right side
    26,775.40x = 809,921,041.98
  5. Step 5: Solve for x
    x = 809,921,041.98/26,775.40
  6. Step 6: Final answer
    x = 30,248.70

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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.