Home / 20,234.89-27,923.13-11,280.66

Finding the Fourth Proportional to 20,234.89, 27,923.13 and 11,280.66

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Solution

The fourth proportional to 20,234.89, 27,923.13 and 11,280.66 is: 15,566.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,234.89 : 27,923.13 = 11,280.66 : x
  2. Step 2: Convert to fraction form
    20,234.89/27,923.13 = 11,280.66/x
  3. Step 3: Cross multiply
    20,234.89x = 27,923.13 × 11,280.66
  4. Step 4: Simplify right side
    20,234.89x = 314,991,335.67
  5. Step 5: Solve for x
    x = 314,991,335.67/20,234.89
  6. Step 6: Final answer
    x = 15,566.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.