Home / 20,018.10-30,027.75-6,870.27

Finding the Fourth Proportional to 20,018.10, 30,027.75 and 6,870.27

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Solution

The fourth proportional to 20,018.10, 30,027.75 and 6,870.27 is: 10,305.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,018.10 : 30,027.75 = 6,870.27 : x
  2. Step 2: Convert to fraction form
    20,018.10/30,027.75 = 6,870.27/x
  3. Step 3: Cross multiply
    20,018.10x = 30,027.75 × 6,870.27
  4. Step 4: Simplify right side
    20,018.10x = 206,298,749.99
  5. Step 5: Solve for x
    x = 206,298,749.99/20,018.10
  6. Step 6: Final answer
    x = 10,305.61

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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.