Home / 19,838.13-27,378.39-10,887.38

Finding the Fourth Proportional to 19,838.13, 27,378.39 and 10,887.38

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Solution

The fourth proportional to 19,838.13, 27,378.39 and 10,887.38 is: 15,025.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,838.13 : 27,378.39 = 10,887.38 : x
  2. Step 2: Convert to fraction form
    19,838.13/27,378.39 = 10,887.38/x
  3. Step 3: Cross multiply
    19,838.13x = 27,378.39 × 10,887.38
  4. Step 4: Simplify right side
    19,838.13x = 298,078,942.32
  5. Step 5: Solve for x
    x = 298,078,942.32/19,838.13
  6. Step 6: Final answer
    x = 15,025.56

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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.