Home / 21,200.27-31,801.08-10,664.54

Finding the Fourth Proportional to 21,200.27, 31,801.08 and 10,664.54

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Solution

The fourth proportional to 21,200.27, 31,801.08 and 10,664.54 is: 15,997.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,200.27 : 31,801.08 = 10,664.54 : x
  2. Step 2: Convert to fraction form
    21,200.27/31,801.08 = 10,664.54/x
  3. Step 3: Cross multiply
    21,200.27x = 31,801.08 × 10,664.54
  4. Step 4: Simplify right side
    21,200.27x = 339,143,730.70
  5. Step 5: Solve for x
    x = 339,143,730.70/21,200.27
  6. Step 6: Final answer
    x = 15,997.14

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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.