Home / 28,229.46-42,335.52-19,520.34

Finding the Fourth Proportional to 28,229.46, 42,335.52 and 19,520.34

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Solution

The fourth proportional to 28,229.46, 42,335.52 and 19,520.34 is: 29,274.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,229.46 : 42,335.52 = 19,520.34 : x
  2. Step 2: Convert to fraction form
    28,229.46/42,335.52 = 19,520.34/x
  3. Step 3: Cross multiply
    28,229.46x = 42,335.52 × 19,520.34
  4. Step 4: Simplify right side
    28,229.46x = 826,403,744.48
  5. Step 5: Solve for x
    x = 826,403,744.48/28,229.46
  6. Step 6: Final answer
    x = 29,274.51

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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.