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Finding the Fourth Proportional to 27,039.47, 40,556.01 and 8,319.47

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Solution

The fourth proportional to 27,039.47, 40,556.01 and 8,319.47 is: 12,478.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,039.47 : 40,556.01 = 8,319.47 : x
  2. Step 2: Convert to fraction form
    27,039.47/40,556.01 = 8,319.47/x
  3. Step 3: Cross multiply
    27,039.47x = 40,556.01 × 8,319.47
  4. Step 4: Simplify right side
    27,039.47x = 337,404,508.51
  5. Step 5: Solve for x
    x = 337,404,508.51/27,039.47
  6. Step 6: Final answer
    x = 12,478.22

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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.