Home / 19,918.44-29,859.84-8,224.20

Finding the Fourth Proportional to 19,918.44, 29,859.84 and 8,224.20

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Solution

The fourth proportional to 19,918.44, 29,859.84 and 8,224.20 is: 12,328.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,918.44 : 29,859.84 = 8,224.20 : x
  2. Step 2: Convert to fraction form
    19,918.44/29,859.84 = 8,224.20/x
  3. Step 3: Cross multiply
    19,918.44x = 29,859.84 × 8,224.20
  4. Step 4: Simplify right side
    19,918.44x = 245,573,296.13
  5. Step 5: Solve for x
    x = 245,573,296.13/19,918.44
  6. Step 6: Final answer
    x = 12,328.94

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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.