Home / 20,009.08-30,015.08-6,861.34

Finding the Fourth Proportional to 20,009.08, 30,015.08 and 6,861.34

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Solution

The fourth proportional to 20,009.08, 30,015.08 and 6,861.34 is: 10,292.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,009.08 : 30,015.08 = 6,861.34 : x
  2. Step 2: Convert to fraction form
    20,009.08/30,015.08 = 6,861.34/x
  3. Step 3: Cross multiply
    20,009.08x = 30,015.08 × 6,861.34
  4. Step 4: Simplify right side
    20,009.08x = 205,943,669.01
  5. Step 5: Solve for x
    x = 205,943,669.01/20,009.08
  6. Step 6: Final answer
    x = 10,292.51

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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.