Home / 26,968.47-40,438.05-12,160.05

Finding the Fourth Proportional to 26,968.47, 40,438.05 and 12,160.05

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Solution

The fourth proportional to 26,968.47, 40,438.05 and 12,160.05 is: 18,233.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,968.47 : 40,438.05 = 12,160.05 : x
  2. Step 2: Convert to fraction form
    26,968.47/40,438.05 = 12,160.05/x
  3. Step 3: Cross multiply
    26,968.47x = 40,438.05 × 12,160.05
  4. Step 4: Simplify right side
    26,968.47x = 491,728,709.90
  5. Step 5: Solve for x
    x = 491,728,709.90/26,968.47
  6. Step 6: Final answer
    x = 18,233.47

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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.