Home / 27,135.90-40,709.66-8,415.53

Finding the Fourth Proportional to 27,135.90, 40,709.66 and 8,415.53

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Solution

The fourth proportional to 27,135.90, 40,709.66 and 8,415.53 is: 12,625.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,135.90 : 40,709.66 = 8,415.53 : x
  2. Step 2: Convert to fraction form
    27,135.90/40,709.66 = 8,415.53/x
  3. Step 3: Cross multiply
    27,135.90x = 40,709.66 × 8,415.53
  4. Step 4: Simplify right side
    27,135.90x = 342,593,119.39
  5. Step 5: Solve for x
    x = 342,593,119.39/27,135.90
  6. Step 6: Final answer
    x = 12,625.09

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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.