Home / 22,333.12-30,817.40-13,380.39

Finding the Fourth Proportional to 22,333.12, 30,817.40 and 13,380.39

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Solution

The fourth proportional to 22,333.12, 30,817.40 and 13,380.39 is: 18,463.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,333.12 : 30,817.40 = 13,380.39 : x
  2. Step 2: Convert to fraction form
    22,333.12/30,817.40 = 13,380.39/x
  3. Step 3: Cross multiply
    22,333.12x = 30,817.40 × 13,380.39
  4. Step 4: Simplify right side
    22,333.12x = 412,348,763.88
  5. Step 5: Solve for x
    x = 412,348,763.88/22,333.12
  6. Step 6: Final answer
    x = 18,463.56

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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.