Home / 20,056.85-27,679.47-11,105.34

Finding the Fourth Proportional to 20,056.85, 27,679.47 and 11,105.34

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Solution

The fourth proportional to 20,056.85, 27,679.47 and 11,105.34 is: 15,325.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,056.85 : 27,679.47 = 11,105.34 : x
  2. Step 2: Convert to fraction form
    20,056.85/27,679.47 = 11,105.34/x
  3. Step 3: Cross multiply
    20,056.85x = 27,679.47 × 11,105.34
  4. Step 4: Simplify right side
    20,056.85x = 307,389,842.39
  5. Step 5: Solve for x
    x = 307,389,842.39/20,056.85
  6. Step 6: Final answer
    x = 15,325.93

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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.