Home / 22,330.56-30,812.64-12,897.28

Finding the Fourth Proportional to 22,330.56, 30,812.64 and 12,897.28

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Solution

The fourth proportional to 22,330.56, 30,812.64 and 12,897.28 is: 17,796.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,330.56 : 30,812.64 = 12,897.28 : x
  2. Step 2: Convert to fraction form
    22,330.56/30,812.64 = 12,897.28/x
  3. Step 3: Cross multiply
    22,330.56x = 30,812.64 × 12,897.28
  4. Step 4: Simplify right side
    22,330.56x = 397,399,245.62
  5. Step 5: Solve for x
    x = 397,399,245.62/22,330.56
  6. Step 6: Final answer
    x = 17,796.21

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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.