Home / 25,311.96-34,930.32-13,982.20

Finding the Fourth Proportional to 25,311.96, 34,930.32 and 13,982.20

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Solution

The fourth proportional to 25,311.96, 34,930.32 and 13,982.20 is: 19,295.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,311.96 : 34,930.32 = 13,982.20 : x
  2. Step 2: Convert to fraction form
    25,311.96/34,930.32 = 13,982.20/x
  3. Step 3: Cross multiply
    25,311.96x = 34,930.32 × 13,982.20
  4. Step 4: Simplify right side
    25,311.96x = 488,402,720.30
  5. Step 5: Solve for x
    x = 488,402,720.30/25,311.96
  6. Step 6: Final answer
    x = 19,295.33

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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.