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Finding the Fourth Proportional to 27,990.08, 41,985.04 and 7,213.44

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Solution

The fourth proportional to 27,990.08, 41,985.04 and 7,213.44 is: 10,820.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,990.08 : 41,985.04 = 7,213.44 : x
  2. Step 2: Convert to fraction form
    27,990.08/41,985.04 = 7,213.44/x
  3. Step 3: Cross multiply
    27,990.08x = 41,985.04 × 7,213.44
  4. Step 4: Simplify right side
    27,990.08x = 302,856,566.94
  5. Step 5: Solve for x
    x = 302,856,566.94/27,990.08
  6. Step 6: Final answer
    x = 10,820.14

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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.