Home / 26,615.52-36,691.27-20,940.45

Finding the Fourth Proportional to 26,615.52, 36,691.27 and 20,940.45

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Solution

The fourth proportional to 26,615.52, 36,691.27 and 20,940.45 is: 28,867.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,615.52 : 36,691.27 = 20,940.45 : x
  2. Step 2: Convert to fraction form
    26,615.52/36,691.27 = 20,940.45/x
  3. Step 3: Cross multiply
    26,615.52x = 36,691.27 × 20,940.45
  4. Step 4: Simplify right side
    26,615.52x = 768,331,704.87
  5. Step 5: Solve for x
    x = 768,331,704.87/26,615.52
  6. Step 6: Final answer
    x = 28,867.81

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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.