Home / 22,265.07-30,728.10-13,195.86

Finding the Fourth Proportional to 22,265.07, 30,728.10 and 13,195.86

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Solution

The fourth proportional to 22,265.07, 30,728.10 and 13,195.86 is: 18,211.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,265.07 : 30,728.10 = 13,195.86 : x
  2. Step 2: Convert to fraction form
    22,265.07/30,728.10 = 13,195.86/x
  3. Step 3: Cross multiply
    22,265.07x = 30,728.10 × 13,195.86
  4. Step 4: Simplify right side
    22,265.07x = 405,483,705.67
  5. Step 5: Solve for x
    x = 405,483,705.67/22,265.07
  6. Step 6: Final answer
    x = 18,211.65

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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.