Home / 57,282.12-85,924.62-15,729

Finding the Fourth Proportional to 57,282.12, 85,924.62 and 15,729

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Solution

The fourth proportional to 57,282.12, 85,924.62 and 15,729 is: 23,593.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,282.12 : 85,924.62 = 15,729 : x
  2. Step 2: Convert to fraction form
    57,282.12/85,924.62 = 15,729/x
  3. Step 3: Cross multiply
    57,282.12x = 85,924.62 × 15,729
  4. Step 4: Simplify right side
    57,282.12x = 1,351,508,347.98
  5. Step 5: Solve for x
    x = 1,351,508,347.98/57,282.12
  6. Step 6: Final answer
    x = 23,593.90

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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.