Home / 19,244.28-28,825.92-12,220.77

Finding the Fourth Proportional to 19,244.28, 28,825.92 and 12,220.77

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Solution

The fourth proportional to 19,244.28, 28,825.92 and 12,220.77 is: 18,305.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,244.28 : 28,825.92 = 12,220.77 : x
  2. Step 2: Convert to fraction form
    19,244.28/28,825.92 = 12,220.77/x
  3. Step 3: Cross multiply
    19,244.28x = 28,825.92 × 12,220.77
  4. Step 4: Simplify right side
    19,244.28x = 352,274,938.36
  5. Step 5: Solve for x
    x = 352,274,938.36/19,244.28
  6. Step 6: Final answer
    x = 18,305.44

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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.