Home / 20,039.57-27,663.46-11,976.07

Finding the Fourth Proportional to 20,039.57, 27,663.46 and 11,976.07

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Solution

The fourth proportional to 20,039.57, 27,663.46 and 11,976.07 is: 16,532.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,039.57 : 27,663.46 = 11,976.07 : x
  2. Step 2: Convert to fraction form
    20,039.57/27,663.46 = 11,976.07/x
  3. Step 3: Cross multiply
    20,039.57x = 27,663.46 × 11,976.07
  4. Step 4: Simplify right side
    20,039.57x = 331,299,395.08
  5. Step 5: Solve for x
    x = 331,299,395.08/20,039.57
  6. Step 6: Final answer
    x = 16,532.26

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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.