Home / 21,914.07-32,879.39-13,155.09

Finding the Fourth Proportional to 21,914.07, 32,879.39 and 13,155.09

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Solution

The fourth proportional to 21,914.07, 32,879.39 and 13,155.09 is: 19,737.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,914.07 : 32,879.39 = 13,155.09 : x
  2. Step 2: Convert to fraction form
    21,914.07/32,879.39 = 13,155.09/x
  3. Step 3: Cross multiply
    21,914.07x = 32,879.39 × 13,155.09
  4. Step 4: Simplify right side
    21,914.07x = 432,531,268.82
  5. Step 5: Solve for x
    x = 432,531,268.82/21,914.07
  6. Step 6: Final answer
    x = 19,737.61

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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.