Home / 22,219.11-30,661.11-13,023.45

Finding the Fourth Proportional to 22,219.11, 30,661.11 and 13,023.45

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Solution

The fourth proportional to 22,219.11, 30,661.11 and 13,023.45 is: 17,971.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,219.11 : 30,661.11 = 13,023.45 : x
  2. Step 2: Convert to fraction form
    22,219.11/30,661.11 = 13,023.45/x
  3. Step 3: Cross multiply
    22,219.11x = 30,661.11 × 13,023.45
  4. Step 4: Simplify right side
    22,219.11x = 399,313,433.03
  5. Step 5: Solve for x
    x = 399,313,433.03/22,219.11
  6. Step 6: Final answer
    x = 17,971.62

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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.