Home / 21,769.04-29,979.72-19,626.32

Finding the Fourth Proportional to 21,769.04, 29,979.72 and 19,626.32

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Solution

The fourth proportional to 21,769.04, 29,979.72 and 19,626.32 is: 27,028.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,769.04 : 29,979.72 = 19,626.32 : x
  2. Step 2: Convert to fraction form
    21,769.04/29,979.72 = 19,626.32/x
  3. Step 3: Cross multiply
    21,769.04x = 29,979.72 × 19,626.32
  4. Step 4: Simplify right side
    21,769.04x = 588,391,578.23
  5. Step 5: Solve for x
    x = 588,391,578.23/21,769.04
  6. Step 6: Final answer
    x = 27,028.83

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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.