Home / 38,105.20-52,583.07-21,108.09

Finding the Fourth Proportional to 38,105.20, 52,583.07 and 21,108.09

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Solution

The fourth proportional to 38,105.20, 52,583.07 and 21,108.09 is: 29,128.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,105.20 : 52,583.07 = 21,108.09 : x
  2. Step 2: Convert to fraction form
    38,105.20/52,583.07 = 21,108.09/x
  3. Step 3: Cross multiply
    38,105.20x = 52,583.07 × 21,108.09
  4. Step 4: Simplify right side
    38,105.20x = 1,109,928,450.38
  5. Step 5: Solve for x
    x = 1,109,928,450.38/38,105.20
  6. Step 6: Final answer
    x = 29,128.00

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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.