Home / 27,456.68-37,887.94-15,519.40

Finding the Fourth Proportional to 27,456.68, 37,887.94 and 15,519.40

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Solution

The fourth proportional to 27,456.68, 37,887.94 and 15,519.40 is: 21,415.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,456.68 : 37,887.94 = 15,519.40 : x
  2. Step 2: Convert to fraction form
    27,456.68/37,887.94 = 15,519.40/x
  3. Step 3: Cross multiply
    27,456.68x = 37,887.94 × 15,519.40
  4. Step 4: Simplify right side
    27,456.68x = 587,998,096.04
  5. Step 5: Solve for x
    x = 587,998,096.04/27,456.68
  6. Step 6: Final answer
    x = 21,415.48

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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.