Home / 25,381.73-34,993.23-20,827.73

Finding the Fourth Proportional to 25,381.73, 34,993.23 and 20,827.73

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Solution

The fourth proportional to 25,381.73, 34,993.23 and 20,827.73 is: 28,714.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,381.73 : 34,993.23 = 20,827.73 : x
  2. Step 2: Convert to fraction form
    25,381.73/34,993.23 = 20,827.73/x
  3. Step 3: Cross multiply
    25,381.73x = 34,993.23 × 20,827.73
  4. Step 4: Simplify right side
    25,381.73x = 728,829,546.27
  5. Step 5: Solve for x
    x = 728,829,546.27/25,381.73
  6. Step 6: Final answer
    x = 28,714.73

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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.