Home / 26,687.76-36,829.36-18,633.12

Finding the Fourth Proportional to 26,687.76, 36,829.36 and 18,633.12

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Solution

The fourth proportional to 26,687.76, 36,829.36 and 18,633.12 is: 25,713.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,687.76 : 36,829.36 = 18,633.12 : x
  2. Step 2: Convert to fraction form
    26,687.76/36,829.36 = 18,633.12/x
  3. Step 3: Cross multiply
    26,687.76x = 36,829.36 × 18,633.12
  4. Step 4: Simplify right side
    26,687.76x = 686,245,884.40
  5. Step 5: Solve for x
    x = 686,245,884.40/26,687.76
  6. Step 6: Final answer
    x = 25,713.88

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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.