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Finding the Fourth Proportional to 34,987.80, 52,481.70 and 14,226.20

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Solution

The fourth proportional to 34,987.80, 52,481.70 and 14,226.20 is: 21,339.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,987.80 : 52,481.70 = 14,226.20 : x
  2. Step 2: Convert to fraction form
    34,987.80/52,481.70 = 14,226.20/x
  3. Step 3: Cross multiply
    34,987.80x = 52,481.70 × 14,226.20
  4. Step 4: Simplify right side
    34,987.80x = 746,615,160.54
  5. Step 5: Solve for x
    x = 746,615,160.54/34,987.80
  6. Step 6: Final answer
    x = 21,339.30

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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.