Home / 20,707.07-31,056.26-6,668.37

Finding the Fourth Proportional to 20,707.07, 31,056.26 and 6,668.37

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Solution

The fourth proportional to 20,707.07, 31,056.26 and 6,668.37 is: 10,001.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,707.07 : 31,056.26 = 6,668.37 : x
  2. Step 2: Convert to fraction form
    20,707.07/31,056.26 = 6,668.37/x
  3. Step 3: Cross multiply
    20,707.07x = 31,056.26 × 6,668.37
  4. Step 4: Simplify right side
    20,707.07x = 207,094,599.15
  5. Step 5: Solve for x
    x = 207,094,599.15/20,707.07
  6. Step 6: Final answer
    x = 10,001.16

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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.