Home / 21,292.42-31,936.20-5,708.83

Finding the Fourth Proportional to 21,292.42, 31,936.20 and 5,708.83

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Solution

The fourth proportional to 21,292.42, 31,936.20 and 5,708.83 is: 8,562.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,292.42 : 31,936.20 = 5,708.83 : x
  2. Step 2: Convert to fraction form
    21,292.42/31,936.20 = 5,708.83/x
  3. Step 3: Cross multiply
    21,292.42x = 31,936.20 × 5,708.83
  4. Step 4: Simplify right side
    21,292.42x = 182,318,336.65
  5. Step 5: Solve for x
    x = 182,318,336.65/21,292.42
  6. Step 6: Final answer
    x = 8,562.59

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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.