Home / 20,000.22-29,990.27-6,668.49

Finding the Fourth Proportional to 20,000.22, 29,990.27 and 6,668.49

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Solution

The fourth proportional to 20,000.22, 29,990.27 and 6,668.49 is: 9,999.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,000.22 : 29,990.27 = 6,668.49 : x
  2. Step 2: Convert to fraction form
    20,000.22/29,990.27 = 6,668.49/x
  3. Step 3: Cross multiply
    20,000.22x = 29,990.27 × 6,668.49
  4. Step 4: Simplify right side
    20,000.22x = 199,989,782.25
  5. Step 5: Solve for x
    x = 199,989,782.25/20,000.22
  6. Step 6: Final answer
    x = 9,999.38

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Half scale
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Double scale
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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.