Home / 20,181.06-30,246.66-7,018.02

Finding the Fourth Proportional to 20,181.06, 30,246.66 and 7,018.02

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Solution

The fourth proportional to 20,181.06, 30,246.66 and 7,018.02 is: 10,518.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181.06 : 30,246.66 = 7,018.02 : x
  2. Step 2: Convert to fraction form
    20,181.06/30,246.66 = 7,018.02/x
  3. Step 3: Cross multiply
    20,181.06x = 30,246.66 × 7,018.02
  4. Step 4: Simplify right side
    20,181.06x = 212,271,664.81
  5. Step 5: Solve for x
    x = 212,271,664.81/20,181.06
  6. Step 6: Final answer
    x = 10,518.36

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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.