Home / 38,120.75-52,608.66-21,126.85

Finding the Fourth Proportional to 38,120.75, 52,608.66 and 21,126.85

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Solution

The fourth proportional to 38,120.75, 52,608.66 and 21,126.85 is: 29,156.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,120.75 : 52,608.66 = 21,126.85 : x
  2. Step 2: Convert to fraction form
    38,120.75/52,608.66 = 21,126.85/x
  3. Step 3: Cross multiply
    38,120.75x = 52,608.66 × 21,126.85
  4. Step 4: Simplify right side
    38,120.75x = 1,111,455,057.77
  5. Step 5: Solve for x
    x = 1,111,455,057.77/38,120.75
  6. Step 6: Final answer
    x = 29,156.17

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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.