Home / 36,021.12-49,717.44-21,121.92

Finding the Fourth Proportional to 36,021.12, 49,717.44 and 21,121.92

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Solution

The fourth proportional to 36,021.12, 49,717.44 and 21,121.92 is: 29,153.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,021.12 : 49,717.44 = 21,121.92 : x
  2. Step 2: Convert to fraction form
    36,021.12/49,717.44 = 21,121.92/x
  3. Step 3: Cross multiply
    36,021.12x = 49,717.44 × 21,121.92
  4. Step 4: Simplify right side
    36,021.12x = 1,050,127,790.28
  5. Step 5: Solve for x
    x = 1,050,127,790.28/36,021.12
  6. Step 6: Final answer
    x = 29,153.11

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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.