Home / 27,115.08-40,657.69-8,389.90

Finding the Fourth Proportional to 27,115.08, 40,657.69 and 8,389.90

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Solution

The fourth proportional to 27,115.08, 40,657.69 and 8,389.90 is: 12,580.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,115.08 : 40,657.69 = 8,389.90 : x
  2. Step 2: Convert to fraction form
    27,115.08/40,657.69 = 8,389.90/x
  3. Step 3: Cross multiply
    27,115.08x = 40,657.69 × 8,389.90
  4. Step 4: Simplify right side
    27,115.08x = 341,113,953.33
  5. Step 5: Solve for x
    x = 341,113,953.33/27,115.08
  6. Step 6: Final answer
    x = 12,580.23

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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.