Home / 26,115.06-36,039.39-15,504.72

Finding the Fourth Proportional to 26,115.06, 36,039.39 and 15,504.72

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Solution

The fourth proportional to 26,115.06, 36,039.39 and 15,504.72 is: 21,396.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,115.06 : 36,039.39 = 15,504.72 : x
  2. Step 2: Convert to fraction form
    26,115.06/36,039.39 = 15,504.72/x
  3. Step 3: Cross multiply
    26,115.06x = 36,039.39 × 15,504.72
  4. Step 4: Simplify right side
    26,115.06x = 558,780,650.92
  5. Step 5: Solve for x
    x = 558,780,650.92/26,115.06
  6. Step 6: Final answer
    x = 21,396.87

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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.