Home / 22,861.20-34,291.80-21,325.20

Finding the Fourth Proportional to 22,861.20, 34,291.80 and 21,325.20

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Solution

The fourth proportional to 22,861.20, 34,291.80 and 21,325.20 is: 31,987.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,861.20 : 34,291.80 = 21,325.20 : x
  2. Step 2: Convert to fraction form
    22,861.20/34,291.80 = 21,325.20/x
  3. Step 3: Cross multiply
    22,861.20x = 34,291.80 × 21,325.20
  4. Step 4: Simplify right side
    22,861.20x = 731,279,493.36
  5. Step 5: Solve for x
    x = 731,279,493.36/22,861.20
  6. Step 6: Final answer
    x = 31,987.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.