Home / 26,472.45-36,507.23-21,112.72

Finding the Fourth Proportional to 26,472.45, 36,507.23 and 21,112.72

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Solution

The fourth proportional to 26,472.45, 36,507.23 and 21,112.72 is: 29,115.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,472.45 : 36,507.23 = 21,112.72 : x
  2. Step 2: Convert to fraction form
    26,472.45/36,507.23 = 21,112.72/x
  3. Step 3: Cross multiply
    26,472.45x = 36,507.23 × 21,112.72
  4. Step 4: Simplify right side
    26,472.45x = 770,766,977.75
  5. Step 5: Solve for x
    x = 770,766,977.75/26,472.45
  6. Step 6: Final answer
    x = 29,115.81

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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.