Home / 36,231.20-49,987.10-21,885.66

Finding the Fourth Proportional to 36,231.20, 49,987.10 and 21,885.66

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Solution

The fourth proportional to 36,231.20, 49,987.10 and 21,885.66 is: 30,194.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,231.20 : 49,987.10 = 21,885.66 : x
  2. Step 2: Convert to fraction form
    36,231.20/49,987.10 = 21,885.66/x
  3. Step 3: Cross multiply
    36,231.20x = 49,987.10 × 21,885.66
  4. Step 4: Simplify right side
    36,231.20x = 1,094,000,674.99
  5. Step 5: Solve for x
    x = 1,094,000,674.99/36,231.20
  6. Step 6: Final answer
    x = 30,194.99

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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.