Home / 22,405.20-30,918.48-12,333.60

Finding the Fourth Proportional to 22,405.20, 30,918.48 and 12,333.60

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Solution

The fourth proportional to 22,405.20, 30,918.48 and 12,333.60 is: 17,019.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,405.20 : 30,918.48 = 12,333.60 : x
  2. Step 2: Convert to fraction form
    22,405.20/30,918.48 = 12,333.60/x
  3. Step 3: Cross multiply
    22,405.20x = 30,918.48 × 12,333.60
  4. Step 4: Simplify right side
    22,405.20x = 381,336,164.93
  5. Step 5: Solve for x
    x = 381,336,164.93/22,405.20
  6. Step 6: Final answer
    x = 17,019.98

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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.