Home / 27,019.20-40,516.64-11,428.80

Finding the Fourth Proportional to 27,019.20, 40,516.64 and 11,428.80

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Solution

The fourth proportional to 27,019.20, 40,516.64 and 11,428.80 is: 17,138.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,019.20 : 40,516.64 = 11,428.80 : x
  2. Step 2: Convert to fraction form
    27,019.20/40,516.64 = 11,428.80/x
  3. Step 3: Cross multiply
    27,019.20x = 40,516.64 × 11,428.80
  4. Step 4: Simplify right side
    27,019.20x = 463,056,575.23
  5. Step 5: Solve for x
    x = 463,056,575.23/27,019.20
  6. Step 6: Final answer
    x = 17,138.06

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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.