Home / 22,453.56-30,985.32-12,381.66

Finding the Fourth Proportional to 22,453.56, 30,985.32 and 12,381.66

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Solution

The fourth proportional to 22,453.56, 30,985.32 and 12,381.66 is: 17,086.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,453.56 : 30,985.32 = 12,381.66 : x
  2. Step 2: Convert to fraction form
    22,453.56/30,985.32 = 12,381.66/x
  3. Step 3: Cross multiply
    22,453.56x = 30,985.32 × 12,381.66
  4. Step 4: Simplify right side
    22,453.56x = 383,649,697.23
  5. Step 5: Solve for x
    x = 383,649,697.23/22,453.56
  6. Step 6: Final answer
    x = 17,086.36

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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.