Home / 21,025.82-31,558.41-10,644.86

Finding the Fourth Proportional to 21,025.82, 31,558.41 and 10,644.86

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Solution

The fourth proportional to 21,025.82, 31,558.41 and 10,644.86 is: 15,977.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,025.82 : 31,558.41 = 10,644.86 : x
  2. Step 2: Convert to fraction form
    21,025.82/31,558.41 = 10,644.86/x
  3. Step 3: Cross multiply
    21,025.82x = 31,558.41 × 10,644.86
  4. Step 4: Simplify right side
    21,025.82x = 335,934,856.27
  5. Step 5: Solve for x
    x = 335,934,856.27/21,025.82
  6. Step 6: Final answer
    x = 15,977.25

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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.