Home / 26,187.21-36,135.42-15,431.39

Finding the Fourth Proportional to 26,187.21, 36,135.42 and 15,431.39

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Solution

The fourth proportional to 26,187.21, 36,135.42 and 15,431.39 is: 21,293.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,187.21 : 36,135.42 = 15,431.39 : x
  2. Step 2: Convert to fraction form
    26,187.21/36,135.42 = 15,431.39/x
  3. Step 3: Cross multiply
    26,187.21x = 36,135.42 × 15,431.39
  4. Step 4: Simplify right side
    26,187.21x = 557,619,758.83
  5. Step 5: Solve for x
    x = 557,619,758.83/26,187.21
  6. Step 6: Final answer
    x = 21,293.59

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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.