Home / 27,118.25-40,678.10-8,650.25

Finding the Fourth Proportional to 27,118.25, 40,678.10 and 8,650.25

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Solution

The fourth proportional to 27,118.25, 40,678.10 and 8,650.25 is: 12,975.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,118.25 : 40,678.10 = 8,650.25 : x
  2. Step 2: Convert to fraction form
    27,118.25/40,678.10 = 8,650.25/x
  3. Step 3: Cross multiply
    27,118.25x = 40,678.10 × 8,650.25
  4. Step 4: Simplify right side
    27,118.25x = 351,875,691.27
  5. Step 5: Solve for x
    x = 351,875,691.27/27,118.25
  6. Step 6: Final answer
    x = 12,975.60

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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.