Home / 22,117.45-30,520.06-13,163.52

Finding the Fourth Proportional to 22,117.45, 30,520.06 and 13,163.52

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Solution

The fourth proportional to 22,117.45, 30,520.06 and 13,163.52 is: 18,164.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,117.45 : 30,520.06 = 13,163.52 : x
  2. Step 2: Convert to fraction form
    22,117.45/30,520.06 = 13,163.52/x
  3. Step 3: Cross multiply
    22,117.45x = 30,520.06 × 13,163.52
  4. Step 4: Simplify right side
    22,117.45x = 401,751,420.21
  5. Step 5: Solve for x
    x = 401,751,420.21/22,117.45
  6. Step 6: Final answer
    x = 18,164.45

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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.