Home / 21,280.64-29,367.48-11,849.42

Finding the Fourth Proportional to 21,280.64, 29,367.48 and 11,849.42

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Solution

The fourth proportional to 21,280.64, 29,367.48 and 11,849.42 is: 16,352.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,280.64 : 29,367.48 = 11,849.42 : x
  2. Step 2: Convert to fraction form
    21,280.64/29,367.48 = 11,849.42/x
  3. Step 3: Cross multiply
    21,280.64x = 29,367.48 × 11,849.42
  4. Step 4: Simplify right side
    21,280.64x = 347,987,604.86
  5. Step 5: Solve for x
    x = 347,987,604.86/21,280.64
  6. Step 6: Final answer
    x = 16,352.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.