Home / 21,062.37-31,593.47-8,579.61

Finding the Fourth Proportional to 21,062.37, 31,593.47 and 8,579.61

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Solution

The fourth proportional to 21,062.37, 31,593.47 and 8,579.61 is: 12,869.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062.37 : 31,593.47 = 8,579.61 : x
  2. Step 2: Convert to fraction form
    21,062.37/31,593.47 = 8,579.61/x
  3. Step 3: Cross multiply
    21,062.37x = 31,593.47 × 8,579.61
  4. Step 4: Simplify right side
    21,062.37x = 271,059,608.25
  5. Step 5: Solve for x
    x = 271,059,608.25/21,062.37
  6. Step 6: Final answer
    x = 12,869.38

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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.