Home / 27,389.51-41,078.79-8,666.36

Finding the Fourth Proportional to 27,389.51, 41,078.79 and 8,666.36

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Solution

The fourth proportional to 27,389.51, 41,078.79 and 8,666.36 is: 12,997.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,389.51 : 41,078.79 = 8,666.36 : x
  2. Step 2: Convert to fraction form
    27,389.51/41,078.79 = 8,666.36/x
  3. Step 3: Cross multiply
    27,389.51x = 41,078.79 × 8,666.36
  4. Step 4: Simplify right side
    27,389.51x = 356,003,582.50
  5. Step 5: Solve for x
    x = 356,003,582.50/27,389.51
  6. Step 6: Final answer
    x = 12,997.81

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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.