Home / 26,218.90-39,295.52-20,650.25

Finding the Fourth Proportional to 26,218.90, 39,295.52 and 20,650.25

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Solution

The fourth proportional to 26,218.90, 39,295.52 and 20,650.25 is: 30,949.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,218.90 : 39,295.52 = 20,650.25 : x
  2. Step 2: Convert to fraction form
    26,218.90/39,295.52 = 20,650.25/x
  3. Step 3: Cross multiply
    26,218.90x = 39,295.52 × 20,650.25
  4. Step 4: Simplify right side
    26,218.90x = 811,462,311.88
  5. Step 5: Solve for x
    x = 811,462,311.88/26,218.90
  6. Step 6: Final answer
    x = 30,949.52

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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.