Home / 22,239.86-30,690.73-12,168.16

Finding the Fourth Proportional to 22,239.86, 30,690.73 and 12,168.16

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Solution

The fourth proportional to 22,239.86, 30,690.73 and 12,168.16 is: 16,791.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,239.86 : 30,690.73 = 12,168.16 : x
  2. Step 2: Convert to fraction form
    22,239.86/30,690.73 = 12,168.16/x
  3. Step 3: Cross multiply
    22,239.86x = 30,690.73 × 12,168.16
  4. Step 4: Simplify right side
    22,239.86x = 373,449,590.12
  5. Step 5: Solve for x
    x = 373,449,590.12/22,239.86
  6. Step 6: Final answer
    x = 16,791.90

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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.