Home / 26,187.88-36,129.18-18,631.84

Finding the Fourth Proportional to 26,187.88, 36,129.18 and 18,631.84

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Solution

The fourth proportional to 26,187.88, 36,129.18 and 18,631.84 is: 25,704.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,187.88 : 36,129.18 = 18,631.84 : x
  2. Step 2: Convert to fraction form
    26,187.88/36,129.18 = 18,631.84/x
  3. Step 3: Cross multiply
    26,187.88x = 36,129.18 × 18,631.84
  4. Step 4: Simplify right side
    26,187.88x = 673,153,101.09
  5. Step 5: Solve for x
    x = 673,153,101.09/26,187.88
  6. Step 6: Final answer
    x = 25,704.76

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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.