Home / 25,777.31-38,841.56-21,199.83

Finding the Fourth Proportional to 25,777.31, 38,841.56 and 21,199.83

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Solution

The fourth proportional to 25,777.31, 38,841.56 and 21,199.83 is: 31,944.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,777.31 : 38,841.56 = 21,199.83 : x
  2. Step 2: Convert to fraction form
    25,777.31/38,841.56 = 21,199.83/x
  3. Step 3: Cross multiply
    25,777.31x = 38,841.56 × 21,199.83
  4. Step 4: Simplify right side
    25,777.31x = 823,434,296.78
  5. Step 5: Solve for x
    x = 823,434,296.78/25,777.31
  6. Step 6: Final answer
    x = 31,944.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.