Home / 36,128.13-49,856.82-20,216.32

Finding the Fourth Proportional to 36,128.13, 49,856.82 and 20,216.32

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Solution

The fourth proportional to 36,128.13, 49,856.82 and 20,216.32 is: 27,898.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,128.13 : 49,856.82 = 20,216.32 : x
  2. Step 2: Convert to fraction form
    36,128.13/49,856.82 = 20,216.32/x
  3. Step 3: Cross multiply
    36,128.13x = 49,856.82 × 20,216.32
  4. Step 4: Simplify right side
    36,128.13x = 1,007,921,226.85
  5. Step 5: Solve for x
    x = 1,007,921,226.85/36,128.13
  6. Step 6: Final answer
    x = 27,898.52

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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.