Home / 38,167.12-52,670.68-21,170.80

Finding the Fourth Proportional to 38,167.12, 52,670.68 and 21,170.80

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Solution

The fourth proportional to 38,167.12, 52,670.68 and 21,170.80 is: 29,215.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,167.12 : 52,670.68 = 21,170.80 : x
  2. Step 2: Convert to fraction form
    38,167.12/52,670.68 = 21,170.80/x
  3. Step 3: Cross multiply
    38,167.12x = 52,670.68 × 21,170.80
  4. Step 4: Simplify right side
    38,167.12x = 1,115,080,432.14
  5. Step 5: Solve for x
    x = 1,115,080,432.14/38,167.12
  6. Step 6: Final answer
    x = 29,215.73

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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.