Home / 20,708.91-31,060.26-6,667.08

Finding the Fourth Proportional to 20,708.91, 31,060.26 and 6,667.08

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Solution

The fourth proportional to 20,708.91, 31,060.26 and 6,667.08 is: 9,999.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,708.91 : 31,060.26 = 6,667.08 : x
  2. Step 2: Convert to fraction form
    20,708.91/31,060.26 = 6,667.08/x
  3. Step 3: Cross multiply
    20,708.91x = 31,060.26 × 6,667.08
  4. Step 4: Simplify right side
    20,708.91x = 207,081,238.24
  5. Step 5: Solve for x
    x = 207,081,238.24/20,708.91
  6. Step 6: Final answer
    x = 9,999.62

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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.