Home / 19,843.40-27,381.83-11,230.55

Finding the Fourth Proportional to 19,843.40, 27,381.83 and 11,230.55

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Solution

The fourth proportional to 19,843.40, 27,381.83 and 11,230.55 is: 15,496.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,843.40 : 27,381.83 = 11,230.55 : x
  2. Step 2: Convert to fraction form
    19,843.40/27,381.83 = 11,230.55/x
  3. Step 3: Cross multiply
    19,843.40x = 27,381.83 × 11,230.55
  4. Step 4: Simplify right side
    19,843.40x = 307,513,082.18
  5. Step 5: Solve for x
    x = 307,513,082.18/19,843.40
  6. Step 6: Final answer
    x = 15,496.99

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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.