Home / 22,191.42-30,619.11-13,237.17

Finding the Fourth Proportional to 22,191.42, 30,619.11 and 13,237.17

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Solution

The fourth proportional to 22,191.42, 30,619.11 and 13,237.17 is: 18,264.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,191.42 : 30,619.11 = 13,237.17 : x
  2. Step 2: Convert to fraction form
    22,191.42/30,619.11 = 13,237.17/x
  3. Step 3: Cross multiply
    22,191.42x = 30,619.11 × 13,237.17
  4. Step 4: Simplify right side
    22,191.42x = 405,310,471.37
  5. Step 5: Solve for x
    x = 405,310,471.37/22,191.42
  6. Step 6: Final answer
    x = 18,264.29

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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.