Home / 23,157.39-31,956.60-13,086.90

Finding the Fourth Proportional to 23,157.39, 31,956.60 and 13,086.90

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Solution

The fourth proportional to 23,157.39, 31,956.60 and 13,086.90 is: 18,059.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,157.39 : 31,956.60 = 13,086.90 : x
  2. Step 2: Convert to fraction form
    23,157.39/31,956.60 = 13,086.90/x
  3. Step 3: Cross multiply
    23,157.39x = 31,956.60 × 13,086.90
  4. Step 4: Simplify right side
    23,157.39x = 418,212,828.54
  5. Step 5: Solve for x
    x = 418,212,828.54/23,157.39
  6. Step 6: Final answer
    x = 18,059.58

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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.