Home / 38,161.28-52,665.80-21,171.00

Finding the Fourth Proportional to 38,161.28, 52,665.80 and 21,171.00

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Solution

The fourth proportional to 38,161.28, 52,665.80 and 21,171.00 is: 29,217.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,161.28 : 52,665.80 = 21,171.00 : x
  2. Step 2: Convert to fraction form
    38,161.28/52,665.80 = 21,171.00/x
  3. Step 3: Cross multiply
    38,161.28x = 52,665.80 × 21,171.00
  4. Step 4: Simplify right side
    38,161.28x = 1,114,987,282.62
  5. Step 5: Solve for x
    x = 1,114,987,282.62/38,161.28
  6. Step 6: Final answer
    x = 29,217.77

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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.