Home / 20,113.77-30,175.13-6,605.54

Finding the Fourth Proportional to 20,113.77, 30,175.13 and 6,605.54

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Solution

The fourth proportional to 20,113.77, 30,175.13 and 6,605.54 is: 9,909.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,113.77 : 30,175.13 = 6,605.54 : x
  2. Step 2: Convert to fraction form
    20,113.77/30,175.13 = 6,605.54/x
  3. Step 3: Cross multiply
    20,113.77x = 30,175.13 × 6,605.54
  4. Step 4: Simplify right side
    20,113.77x = 199,323,028.22
  5. Step 5: Solve for x
    x = 199,323,028.22/20,113.77
  6. Step 6: Final answer
    x = 9,909.78

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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.