Home / 20,258.10-30,365.55-7,773.30

Finding the Fourth Proportional to 20,258.10, 30,365.55 and 7,773.30

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Solution

The fourth proportional to 20,258.10, 30,365.55 and 7,773.30 is: 11,651.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,258.10 : 30,365.55 = 7,773.30 : x
  2. Step 2: Convert to fraction form
    20,258.10/30,365.55 = 7,773.30/x
  3. Step 3: Cross multiply
    20,258.10x = 30,365.55 × 7,773.30
  4. Step 4: Simplify right side
    20,258.10x = 236,040,529.82
  5. Step 5: Solve for x
    x = 236,040,529.82/20,258.10
  6. Step 6: Final answer
    x = 11,651.66

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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.