Home / 20,077.41-27,704.86-11,580.31

Finding the Fourth Proportional to 20,077.41, 27,704.86 and 11,580.31

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Solution

The fourth proportional to 20,077.41, 27,704.86 and 11,580.31 is: 15,979.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,077.41 : 27,704.86 = 11,580.31 : x
  2. Step 2: Convert to fraction form
    20,077.41/27,704.86 = 11,580.31/x
  3. Step 3: Cross multiply
    20,077.41x = 27,704.86 × 11,580.31
  4. Step 4: Simplify right side
    20,077.41x = 320,830,809.41
  5. Step 5: Solve for x
    x = 320,830,809.41/20,077.41
  6. Step 6: Final answer
    x = 15,979.69

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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.