Home / 20,057.27-27,679.67-11,558.72

Finding the Fourth Proportional to 20,057.27, 27,679.67 and 11,558.72

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Solution

The fourth proportional to 20,057.27, 27,679.67 and 11,558.72 is: 15,951.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,057.27 : 27,679.67 = 11,558.72 : x
  2. Step 2: Convert to fraction form
    20,057.27/27,679.67 = 11,558.72/x
  3. Step 3: Cross multiply
    20,057.27x = 27,679.67 × 11,558.72
  4. Step 4: Simplify right side
    20,057.27x = 319,941,555.22
  5. Step 5: Solve for x
    x = 319,941,555.22/20,057.27
  6. Step 6: Final answer
    x = 15,951.40

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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.