Home / 22,431.96-30,968.52-13,481.64

Finding the Fourth Proportional to 22,431.96, 30,968.52 and 13,481.64

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Solution

The fourth proportional to 22,431.96, 30,968.52 and 13,481.64 is: 18,612.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,431.96 : 30,968.52 = 13,481.64 : x
  2. Step 2: Convert to fraction form
    22,431.96/30,968.52 = 13,481.64/x
  3. Step 3: Cross multiply
    22,431.96x = 30,968.52 × 13,481.64
  4. Step 4: Simplify right side
    22,431.96x = 417,506,437.97
  5. Step 5: Solve for x
    x = 417,506,437.97/22,431.96
  6. Step 6: Final answer
    x = 18,612.12

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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.