Home / 18,924.33-28,357.32-11,984.25

Finding the Fourth Proportional to 18,924.33, 28,357.32 and 11,984.25

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Solution

The fourth proportional to 18,924.33, 28,357.32 and 11,984.25 is: 17,957.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,924.33 : 28,357.32 = 11,984.25 : x
  2. Step 2: Convert to fraction form
    18,924.33/28,357.32 = 11,984.25/x
  3. Step 3: Cross multiply
    18,924.33x = 28,357.32 × 11,984.25
  4. Step 4: Simplify right side
    18,924.33x = 339,841,212.21
  5. Step 5: Solve for x
    x = 339,841,212.21/18,924.33
  6. Step 6: Final answer
    x = 17,957.90

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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.