Home / 27,794.36-38,360.64-15,861.56

Finding the Fourth Proportional to 27,794.36, 38,360.64 and 15,861.56

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Solution

The fourth proportional to 27,794.36, 38,360.64 and 15,861.56 is: 21,891.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,794.36 : 38,360.64 = 15,861.56 : x
  2. Step 2: Convert to fraction form
    27,794.36/38,360.64 = 15,861.56/x
  3. Step 3: Cross multiply
    27,794.36x = 38,360.64 × 15,861.56
  4. Step 4: Simplify right side
    27,794.36x = 608,459,593.00
  5. Step 5: Solve for x
    x = 608,459,593.00/27,794.36
  6. Step 6: Final answer
    x = 21,891.48

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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.