Home / 25,360.64-38,043.12-6,640.60

Finding the Fourth Proportional to 25,360.64, 38,043.12 and 6,640.60

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Solution

The fourth proportional to 25,360.64, 38,043.12 and 6,640.60 is: 9,961.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,360.64 : 38,043.12 = 6,640.60 : x
  2. Step 2: Convert to fraction form
    25,360.64/38,043.12 = 6,640.60/x
  3. Step 3: Cross multiply
    25,360.64x = 38,043.12 × 6,640.60
  4. Step 4: Simplify right side
    25,360.64x = 252,629,142.67
  5. Step 5: Solve for x
    x = 252,629,142.67/25,360.64
  6. Step 6: Final answer
    x = 9,961.47

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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.