Home / 21,600.96-29,807.04-12,169.44

Finding the Fourth Proportional to 21,600.96, 29,807.04 and 12,169.44

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Solution

The fourth proportional to 21,600.96, 29,807.04 and 12,169.44 is: 16,792.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,600.96 : 29,807.04 = 12,169.44 : x
  2. Step 2: Convert to fraction form
    21,600.96/29,807.04 = 12,169.44/x
  3. Step 3: Cross multiply
    21,600.96x = 29,807.04 × 12,169.44
  4. Step 4: Simplify right side
    21,600.96x = 362,734,984.86
  5. Step 5: Solve for x
    x = 362,734,984.86/21,600.96
  6. Step 6: Final answer
    x = 16,792.54

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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.