Home / 20,088.40-30,151.16-10,234.80

Finding the Fourth Proportional to 20,088.40, 30,151.16 and 10,234.80

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Solution

The fourth proportional to 20,088.40, 30,151.16 and 10,234.80 is: 15,361.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,088.40 : 30,151.16 = 10,234.80 : x
  2. Step 2: Convert to fraction form
    20,088.40/30,151.16 = 10,234.80/x
  3. Step 3: Cross multiply
    20,088.40x = 30,151.16 × 10,234.80
  4. Step 4: Simplify right side
    20,088.40x = 308,591,092.37
  5. Step 5: Solve for x
    x = 308,591,092.37/20,088.40
  6. Step 6: Final answer
    x = 15,361.66

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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.