Home / 20,736.36-28,612.98-11,660.04

Finding the Fourth Proportional to 20,736.36, 28,612.98 and 11,660.04

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Solution

The fourth proportional to 20,736.36, 28,612.98 and 11,660.04 is: 16,089.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736.36 : 28,612.98 = 11,660.04 : x
  2. Step 2: Convert to fraction form
    20,736.36/28,612.98 = 11,660.04/x
  3. Step 3: Cross multiply
    20,736.36x = 28,612.98 × 11,660.04
  4. Step 4: Simplify right side
    20,736.36x = 333,628,491.32
  5. Step 5: Solve for x
    x = 333,628,491.32/20,736.36
  6. Step 6: Final answer
    x = 16,089.06

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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.