Home / 27,896.36-38,495.22-15,318.44

Finding the Fourth Proportional to 27,896.36, 38,495.22 and 15,318.44

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Solution

The fourth proportional to 27,896.36, 38,495.22 and 15,318.44 is: 21,138.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,896.36 : 38,495.22 = 15,318.44 : x
  2. Step 2: Convert to fraction form
    27,896.36/38,495.22 = 15,318.44/x
  3. Step 3: Cross multiply
    27,896.36x = 38,495.22 × 15,318.44
  4. Step 4: Simplify right side
    27,896.36x = 589,686,717.86
  5. Step 5: Solve for x
    x = 589,686,717.86/27,896.36
  6. Step 6: Final answer
    x = 21,138.48

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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.