Home / 19,229.70-28,844.55-12,663.30

Finding the Fourth Proportional to 19,229.70, 28,844.55 and 12,663.30

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Solution

The fourth proportional to 19,229.70, 28,844.55 and 12,663.30 is: 18,994.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,229.70 : 28,844.55 = 12,663.30 : x
  2. Step 2: Convert to fraction form
    19,229.70/28,844.55 = 12,663.30/x
  3. Step 3: Cross multiply
    19,229.70x = 28,844.55 × 12,663.30
  4. Step 4: Simplify right side
    19,229.70x = 365,267,190.02
  5. Step 5: Solve for x
    x = 365,267,190.02/19,229.70
  6. Step 6: Final answer
    x = 18,994.95

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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.