Home / 20,288.35-27,995.14-11,334.74

Finding the Fourth Proportional to 20,288.35, 27,995.14 and 11,334.74

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Solution

The fourth proportional to 20,288.35, 27,995.14 and 11,334.74 is: 15,640.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,288.35 : 27,995.14 = 11,334.74 : x
  2. Step 2: Convert to fraction form
    20,288.35/27,995.14 = 11,334.74/x
  3. Step 3: Cross multiply
    20,288.35x = 27,995.14 × 11,334.74
  4. Step 4: Simplify right side
    20,288.35x = 317,317,633.16
  5. Step 5: Solve for x
    x = 317,317,633.16/20,288.35
  6. Step 6: Final answer
    x = 15,640.39

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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.