Home / 20,488.04-30,721.77-11,942.23

Finding the Fourth Proportional to 20,488.04, 30,721.77 and 11,942.23

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Solution

The fourth proportional to 20,488.04, 30,721.77 and 11,942.23 is: 17,907.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,488.04 : 30,721.77 = 11,942.23 : x
  2. Step 2: Convert to fraction form
    20,488.04/30,721.77 = 11,942.23/x
  3. Step 3: Cross multiply
    20,488.04x = 30,721.77 × 11,942.23
  4. Step 4: Simplify right side
    20,488.04x = 366,886,383.64
  5. Step 5: Solve for x
    x = 366,886,383.64/20,488.04
  6. Step 6: Final answer
    x = 17,907.34

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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.