Home / 21,974.94-32,980.19-12,493.08

Finding the Fourth Proportional to 21,974.94, 32,980.19 and 12,493.08

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Solution

The fourth proportional to 21,974.94, 32,980.19 and 12,493.08 is: 18,749.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,974.94 : 32,980.19 = 12,493.08 : x
  2. Step 2: Convert to fraction form
    21,974.94/32,980.19 = 12,493.08/x
  3. Step 3: Cross multiply
    21,974.94x = 32,980.19 × 12,493.08
  4. Step 4: Simplify right side
    21,974.94x = 412,024,089.62
  5. Step 5: Solve for x
    x = 412,024,089.62/21,974.94
  6. Step 6: Final answer
    x = 18,749.73

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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.