Home / 38,161.20-52,665.01-21,170.84

Finding the Fourth Proportional to 38,161.20, 52,665.01 and 21,170.84

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Solution

The fourth proportional to 38,161.20, 52,665.01 and 21,170.84 is: 29,217.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,161.20 : 52,665.01 = 21,170.84 : x
  2. Step 2: Convert to fraction form
    38,161.20/52,665.01 = 21,170.84/x
  3. Step 3: Cross multiply
    38,161.20x = 52,665.01 × 21,170.84
  4. Step 4: Simplify right side
    38,161.20x = 1,114,962,579.04
  5. Step 5: Solve for x
    x = 1,114,962,579.04/38,161.20
  6. Step 6: Final answer
    x = 29,217.18

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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.