Home / 21,612.26-32,418.06-13,181.24

Finding the Fourth Proportional to 21,612.26, 32,418.06 and 13,181.24

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Solution

The fourth proportional to 21,612.26, 32,418.06 and 13,181.24 is: 19,771.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,612.26 : 32,418.06 = 13,181.24 : x
  2. Step 2: Convert to fraction form
    21,612.26/32,418.06 = 13,181.24/x
  3. Step 3: Cross multiply
    21,612.26x = 32,418.06 × 13,181.24
  4. Step 4: Simplify right side
    21,612.26x = 427,310,229.19
  5. Step 5: Solve for x
    x = 427,310,229.19/21,612.26
  6. Step 6: Final answer
    x = 19,771.66

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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.