Home / 21,509.46-29,682.24-11,949.84

Finding the Fourth Proportional to 21,509.46, 29,682.24 and 11,949.84

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Solution

The fourth proportional to 21,509.46, 29,682.24 and 11,949.84 is: 16,490.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,509.46 : 29,682.24 = 11,949.84 : x
  2. Step 2: Convert to fraction form
    21,509.46/29,682.24 = 11,949.84/x
  3. Step 3: Cross multiply
    21,509.46x = 29,682.24 × 11,949.84
  4. Step 4: Simplify right side
    21,509.46x = 354,698,018.84
  5. Step 5: Solve for x
    x = 354,698,018.84/21,509.46
  6. Step 6: Final answer
    x = 16,490.33

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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.