Home / 27,145.45-40,662.75-13,970.15

Finding the Fourth Proportional to 27,145.45, 40,662.75 and 13,970.15

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Solution

The fourth proportional to 27,145.45, 40,662.75 and 13,970.15 is: 20,926.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,145.45 : 40,662.75 = 13,970.15 : x
  2. Step 2: Convert to fraction form
    27,145.45/40,662.75 = 13,970.15/x
  3. Step 3: Cross multiply
    27,145.45x = 40,662.75 × 13,970.15
  4. Step 4: Simplify right side
    27,145.45x = 568,064,505.88
  5. Step 5: Solve for x
    x = 568,064,505.88/27,145.45
  6. Step 6: Final answer
    x = 20,926.69

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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.