Home / 20,039.49-27,652.32-11,085.57

Finding the Fourth Proportional to 20,039.49, 27,652.32 and 11,085.57

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Solution

The fourth proportional to 20,039.49, 27,652.32 and 11,085.57 is: 15,296.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,039.49 : 27,652.32 = 11,085.57 : x
  2. Step 2: Convert to fraction form
    20,039.49/27,652.32 = 11,085.57/x
  3. Step 3: Cross multiply
    20,039.49x = 27,652.32 × 11,085.57
  4. Step 4: Simplify right side
    20,039.49x = 306,541,729.02
  5. Step 5: Solve for x
    x = 306,541,729.02/20,039.49
  6. Step 6: Final answer
    x = 15,296.88

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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.