Home / 25,579.20-38,397.60-19,761.60

Finding the Fourth Proportional to 25,579.20, 38,397.60 and 19,761.60

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Solution

The fourth proportional to 25,579.20, 38,397.60 and 19,761.60 is: 29,664.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,579.20 : 38,397.60 = 19,761.60 : x
  2. Step 2: Convert to fraction form
    25,579.20/38,397.60 = 19,761.60/x
  3. Step 3: Cross multiply
    25,579.20x = 38,397.60 × 19,761.60
  4. Step 4: Simplify right side
    25,579.20x = 758,798,012.16
  5. Step 5: Solve for x
    x = 758,798,012.16/25,579.20
  6. Step 6: Final answer
    x = 29,664.65

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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.