Home / 20,548.50-28,351.99-12,481.92

Finding the Fourth Proportional to 20,548.50, 28,351.99 and 12,481.92

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Solution

The fourth proportional to 20,548.50, 28,351.99 and 12,481.92 is: 17,222.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,548.50 : 28,351.99 = 12,481.92 : x
  2. Step 2: Convert to fraction form
    20,548.50/28,351.99 = 12,481.92/x
  3. Step 3: Cross multiply
    20,548.50x = 28,351.99 × 12,481.92
  4. Step 4: Simplify right side
    20,548.50x = 353,887,313.71
  5. Step 5: Solve for x
    x = 353,887,313.71/20,548.50
  6. Step 6: Final answer
    x = 17,222.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.