Home / 18,736.72-25,834.16-15,155.52

Finding the Fourth Proportional to 18,736.72, 25,834.16 and 15,155.52

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Solution

The fourth proportional to 18,736.72, 25,834.16 and 15,155.52 is: 20,896.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,736.72 : 25,834.16 = 15,155.52 : x
  2. Step 2: Convert to fraction form
    18,736.72/25,834.16 = 15,155.52/x
  3. Step 3: Cross multiply
    18,736.72x = 25,834.16 × 15,155.52
  4. Step 4: Simplify right side
    18,736.72x = 391,530,128.56
  5. Step 5: Solve for x
    x = 391,530,128.56/18,736.72
  6. Step 6: Final answer
    x = 20,896.41

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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.