Home / 20,287.35-27,993.76-11,333.74

Finding the Fourth Proportional to 20,287.35, 27,993.76 and 11,333.74

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Solution

The fourth proportional to 20,287.35, 27,993.76 and 11,333.74 is: 15,639.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,287.35 : 27,993.76 = 11,333.74 : x
  2. Step 2: Convert to fraction form
    20,287.35/27,993.76 = 11,333.74/x
  3. Step 3: Cross multiply
    20,287.35x = 27,993.76 × 11,333.74
  4. Step 4: Simplify right side
    20,287.35x = 317,273,997.46
  5. Step 5: Solve for x
    x = 317,273,997.46/20,287.35
  6. Step 6: Final answer
    x = 15,639.01

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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.