Home / 20,258.68-30,366.80-11,360.96

Finding the Fourth Proportional to 20,258.68, 30,366.80 and 11,360.96

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Solution

The fourth proportional to 20,258.68, 30,366.80 and 11,360.96 is: 17,029.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,258.68 : 30,366.80 = 11,360.96 : x
  2. Step 2: Convert to fraction form
    20,258.68/30,366.80 = 11,360.96/x
  3. Step 3: Cross multiply
    20,258.68x = 30,366.80 × 11,360.96
  4. Step 4: Simplify right side
    20,258.68x = 344,996,000.13
  5. Step 5: Solve for x
    x = 344,996,000.13/20,258.68
  6. Step 6: Final answer
    x = 17,029.54

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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.