Home / 26,219.40-39,296.28-20,650.75

Finding the Fourth Proportional to 26,219.40, 39,296.28 and 20,650.75

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Solution

The fourth proportional to 26,219.40, 39,296.28 and 20,650.75 is: 30,950.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,219.40 : 39,296.28 = 20,650.75 : x
  2. Step 2: Convert to fraction form
    26,219.40/39,296.28 = 20,650.75/x
  3. Step 3: Cross multiply
    26,219.40x = 39,296.28 × 20,650.75
  4. Step 4: Simplify right side
    26,219.40x = 811,497,654.21
  5. Step 5: Solve for x
    x = 811,497,654.21/26,219.40
  6. Step 6: Final answer
    x = 30,950.28

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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.