Home / 20,328.03-30,484.13-6,998.49

Finding the Fourth Proportional to 20,328.03, 30,484.13 and 6,998.49

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Solution

The fourth proportional to 20,328.03, 30,484.13 and 6,998.49 is: 10,495.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,328.03 : 30,484.13 = 6,998.49 : x
  2. Step 2: Convert to fraction form
    20,328.03/30,484.13 = 6,998.49/x
  3. Step 3: Cross multiply
    20,328.03x = 30,484.13 × 6,998.49
  4. Step 4: Simplify right side
    20,328.03x = 213,342,843.97
  5. Step 5: Solve for x
    x = 213,342,843.97/20,328.03
  6. Step 6: Final answer
    x = 10,495.01

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Half scale
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Double scale
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Similar ratio
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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.