Home / 19,960.08-29,940.12-11,080.86

Finding the Fourth Proportional to 19,960.08, 29,940.12 and 11,080.86

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Solution

The fourth proportional to 19,960.08, 29,940.12 and 11,080.86 is: 16,621.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,960.08 : 29,940.12 = 11,080.86 : x
  2. Step 2: Convert to fraction form
    19,960.08/29,940.12 = 11,080.86/x
  3. Step 3: Cross multiply
    19,960.08x = 29,940.12 × 11,080.86
  4. Step 4: Simplify right side
    19,960.08x = 331,762,278.10
  5. Step 5: Solve for x
    x = 331,762,278.10/19,960.08
  6. Step 6: Final answer
    x = 16,621.29

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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.