Home / 20,965.39-31,372.71-15,404.92

Finding the Fourth Proportional to 20,965.39, 31,372.71 and 15,404.92

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Solution

The fourth proportional to 20,965.39, 31,372.71 and 15,404.92 is: 23,052.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,965.39 : 31,372.71 = 15,404.92 : x
  2. Step 2: Convert to fraction form
    20,965.39/31,372.71 = 15,404.92/x
  3. Step 3: Cross multiply
    20,965.39x = 31,372.71 × 15,404.92
  4. Step 4: Simplify right side
    20,965.39x = 483,294,087.73
  5. Step 5: Solve for x
    x = 483,294,087.73/20,965.39
  6. Step 6: Final answer
    x = 23,052.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.