Home / 21,228.15-31,847.55-8,073.33

Finding the Fourth Proportional to 21,228.15, 31,847.55 and 8,073.33

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Solution

The fourth proportional to 21,228.15, 31,847.55 and 8,073.33 is: 12,112.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,228.15 : 31,847.55 = 8,073.33 : x
  2. Step 2: Convert to fraction form
    21,228.15/31,847.55 = 8,073.33/x
  3. Step 3: Cross multiply
    21,228.15x = 31,847.55 × 8,073.33
  4. Step 4: Simplify right side
    21,228.15x = 257,115,780.84
  5. Step 5: Solve for x
    x = 257,115,780.84/21,228.15
  6. Step 6: Final answer
    x = 12,112.02

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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.