Home / 20,170.31-27,835.70-11,096.05

Finding the Fourth Proportional to 20,170.31, 27,835.70 and 11,096.05

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Solution

The fourth proportional to 20,170.31, 27,835.70 and 11,096.05 is: 15,312.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,170.31 : 27,835.70 = 11,096.05 : x
  2. Step 2: Convert to fraction form
    20,170.31/27,835.70 = 11,096.05/x
  3. Step 3: Cross multiply
    20,170.31x = 27,835.70 × 11,096.05
  4. Step 4: Simplify right side
    20,170.31x = 308,866,318.99
  5. Step 5: Solve for x
    x = 308,866,318.99/20,170.31
  6. Step 6: Final answer
    x = 15,312.92

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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.