Home / 21,709.99-29,960.04-12,150.46

Finding the Fourth Proportional to 21,709.99, 29,960.04 and 12,150.46

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Solution

The fourth proportional to 21,709.99, 29,960.04 and 12,150.46 is: 16,767.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,709.99 : 29,960.04 = 12,150.46 : x
  2. Step 2: Convert to fraction form
    21,709.99/29,960.04 = 12,150.46/x
  3. Step 3: Cross multiply
    21,709.99x = 29,960.04 × 12,150.46
  4. Step 4: Simplify right side
    21,709.99x = 364,028,267.62
  5. Step 5: Solve for x
    x = 364,028,267.62/21,709.99
  6. Step 6: Final answer
    x = 16,767.78

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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.