Home / 26,628.22-36,720.68-20,657.70

Finding the Fourth Proportional to 26,628.22, 36,720.68 and 20,657.70

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Solution

The fourth proportional to 26,628.22, 36,720.68 and 20,657.70 is: 28,487.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,628.22 : 36,720.68 = 20,657.70 : x
  2. Step 2: Convert to fraction form
    26,628.22/36,720.68 = 20,657.70/x
  3. Step 3: Cross multiply
    26,628.22x = 36,720.68 × 20,657.70
  4. Step 4: Simplify right side
    26,628.22x = 758,564,791.24
  5. Step 5: Solve for x
    x = 758,564,791.24/26,628.22
  6. Step 6: Final answer
    x = 28,487.25

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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.