Home / 21,162.54-31,743.78-8,674.02

Finding the Fourth Proportional to 21,162.54, 31,743.78 and 8,674.02

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Solution

The fourth proportional to 21,162.54, 31,743.78 and 8,674.02 is: 13,011.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,162.54 : 31,743.78 = 8,674.02 : x
  2. Step 2: Convert to fraction form
    21,162.54/31,743.78 = 8,674.02/x
  3. Step 3: Cross multiply
    21,162.54x = 31,743.78 × 8,674.02
  4. Step 4: Simplify right side
    21,162.54x = 275,346,182.60
  5. Step 5: Solve for x
    x = 275,346,182.60/21,162.54
  6. Step 6: Final answer
    x = 13,011.02

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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.