Home / 20,142.36-30,227.31-6,994.62

Finding the Fourth Proportional to 20,142.36, 30,227.31 and 6,994.62

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Solution

The fourth proportional to 20,142.36, 30,227.31 and 6,994.62 is: 10,496.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,142.36 : 30,227.31 = 6,994.62 : x
  2. Step 2: Convert to fraction form
    20,142.36/30,227.31 = 6,994.62/x
  3. Step 3: Cross multiply
    20,142.36x = 30,227.31 × 6,994.62
  4. Step 4: Simplify right side
    20,142.36x = 211,428,547.07
  5. Step 5: Solve for x
    x = 211,428,547.07/20,142.36
  6. Step 6: Final answer
    x = 10,496.71

Related Problems

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Half scale
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Double scale
Find fourth proportional to 20,143.36, 30,228.81 and 6,995.62
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.