Home / 22,131.78-33,201.12-8,985.08

Finding the Fourth Proportional to 22,131.78, 33,201.12 and 8,985.08

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Solution

The fourth proportional to 22,131.78, 33,201.12 and 8,985.08 is: 13,479.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,131.78 : 33,201.12 = 8,985.08 : x
  2. Step 2: Convert to fraction form
    22,131.78/33,201.12 = 8,985.08/x
  3. Step 3: Cross multiply
    22,131.78x = 33,201.12 × 8,985.08
  4. Step 4: Simplify right side
    22,131.78x = 298,314,649.23
  5. Step 5: Solve for x
    x = 298,314,649.23/22,131.78
  6. Step 6: Final answer
    x = 13,479.02

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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.