Home / 22,229.58-30,669.63-15,857.22

Finding the Fourth Proportional to 22,229.58, 30,669.63 and 15,857.22

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Solution

The fourth proportional to 22,229.58, 30,669.63 and 15,857.22 is: 21,877.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,229.58 : 30,669.63 = 15,857.22 : x
  2. Step 2: Convert to fraction form
    22,229.58/30,669.63 = 15,857.22/x
  3. Step 3: Cross multiply
    22,229.58x = 30,669.63 × 15,857.22
  4. Step 4: Simplify right side
    22,229.58x = 486,335,070.23
  5. Step 5: Solve for x
    x = 486,335,070.23/22,229.58
  6. Step 6: Final answer
    x = 21,877.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.