Home / 20,896.19-31,346.28-6,105.23

Finding the Fourth Proportional to 20,896.19, 31,346.28 and 6,105.23

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Solution

The fourth proportional to 20,896.19, 31,346.28 and 6,105.23 is: 9,158.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,896.19 : 31,346.28 = 6,105.23 : x
  2. Step 2: Convert to fraction form
    20,896.19/31,346.28 = 6,105.23/x
  3. Step 3: Cross multiply
    20,896.19x = 31,346.28 × 6,105.23
  4. Step 4: Simplify right side
    20,896.19x = 191,376,249.04
  5. Step 5: Solve for x
    x = 191,376,249.04/20,896.19
  6. Step 6: Final answer
    x = 9,158.43

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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.