Home / 27,991.56-41,987.50-7,215.06

Finding the Fourth Proportional to 27,991.56, 41,987.50 and 7,215.06

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Solution

The fourth proportional to 27,991.56, 41,987.50 and 7,215.06 is: 10,822.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,991.56 : 41,987.50 = 7,215.06 : x
  2. Step 2: Convert to fraction form
    27,991.56/41,987.50 = 7,215.06/x
  3. Step 3: Cross multiply
    27,991.56x = 41,987.50 × 7,215.06
  4. Step 4: Simplify right side
    27,991.56x = 302,942,331.75
  5. Step 5: Solve for x
    x = 302,942,331.75/27,991.56
  6. Step 6: Final answer
    x = 10,822.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.