Home / 26,732.47-36,887.57-15,405.68

Finding the Fourth Proportional to 26,732.47, 36,887.57 and 15,405.68

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Solution

The fourth proportional to 26,732.47, 36,887.57 and 15,405.68 is: 21,257.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,732.47 : 36,887.57 = 15,405.68 : x
  2. Step 2: Convert to fraction form
    26,732.47/36,887.57 = 15,405.68/x
  3. Step 3: Cross multiply
    26,732.47x = 36,887.57 × 15,405.68
  4. Step 4: Simplify right side
    26,732.47x = 568,278,045.69
  5. Step 5: Solve for x
    x = 568,278,045.69/26,732.47
  6. Step 6: Final answer
    x = 21,257.97

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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.