Home / 27,157.24-40,680.42-13,981.93

Finding the Fourth Proportional to 27,157.24, 40,680.42 and 13,981.93

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Solution

The fourth proportional to 27,157.24, 40,680.42 and 13,981.93 is: 20,944.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,157.24 : 40,680.42 = 13,981.93 : x
  2. Step 2: Convert to fraction form
    27,157.24/40,680.42 = 13,981.93/x
  3. Step 3: Cross multiply
    27,157.24x = 40,680.42 × 13,981.93
  4. Step 4: Simplify right side
    27,157.24x = 568,790,784.81
  5. Step 5: Solve for x
    x = 568,790,784.81/27,157.24
  6. Step 6: Final answer
    x = 20,944.35

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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.