Home / 22,557.20-31,125.04-12,994.96

Finding the Fourth Proportional to 22,557.20, 31,125.04 and 12,994.96

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Solution

The fourth proportional to 22,557.20, 31,125.04 and 12,994.96 is: 17,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,557.20 : 31,125.04 = 12,994.96 : x
  2. Step 2: Convert to fraction form
    22,557.20/31,125.04 = 12,994.96/x
  3. Step 3: Cross multiply
    22,557.20x = 31,125.04 × 12,994.96
  4. Step 4: Simplify right side
    22,557.20x = 404,468,649.80
  5. Step 5: Solve for x
    x = 404,468,649.80/22,557.20
  6. Step 6: Final answer
    x = 17,930.80

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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.