Home / 27,736.61-38,276.81-15,161.36

Finding the Fourth Proportional to 27,736.61, 38,276.81 and 15,161.36

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Solution

The fourth proportional to 27,736.61, 38,276.81 and 15,161.36 is: 20,922.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,736.61 : 38,276.81 = 15,161.36 : x
  2. Step 2: Convert to fraction form
    27,736.61/38,276.81 = 15,161.36/x
  3. Step 3: Cross multiply
    27,736.61x = 38,276.81 × 15,161.36
  4. Step 4: Simplify right side
    27,736.61x = 580,328,496.06
  5. Step 5: Solve for x
    x = 580,328,496.06/27,736.61
  6. Step 6: Final answer
    x = 20,922.83

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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.