Home / 22,163.96-30,579.50-12,603.12

Finding the Fourth Proportional to 22,163.96, 30,579.50 and 12,603.12

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Solution

The fourth proportional to 22,163.96, 30,579.50 and 12,603.12 is: 17,388.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,163.96 : 30,579.50 = 12,603.12 : x
  2. Step 2: Convert to fraction form
    22,163.96/30,579.50 = 12,603.12/x
  3. Step 3: Cross multiply
    22,163.96x = 30,579.50 × 12,603.12
  4. Step 4: Simplify right side
    22,163.96x = 385,397,108.04
  5. Step 5: Solve for x
    x = 385,397,108.04/22,163.96
  6. Step 6: Final answer
    x = 17,388.46

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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.