Home / 27,456.20-37,888.09-15,518.82

Finding the Fourth Proportional to 27,456.20, 37,888.09 and 15,518.82

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Solution

The fourth proportional to 27,456.20, 37,888.09 and 15,518.82 is: 21,415.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,456.20 : 37,888.09 = 15,518.82 : x
  2. Step 2: Convert to fraction form
    27,456.20/37,888.09 = 15,518.82/x
  3. Step 3: Cross multiply
    27,456.20x = 37,888.09 × 15,518.82
  4. Step 4: Simplify right side
    27,456.20x = 587,978,552.14
  5. Step 5: Solve for x
    x = 587,978,552.14/27,456.20
  6. Step 6: Final answer
    x = 21,415.15

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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.