Home / 20,199.09-30,296.34-5,409.30

Finding the Fourth Proportional to 20,199.09, 30,296.34 and 5,409.30

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Solution

The fourth proportional to 20,199.09, 30,296.34 and 5,409.30 is: 8,113.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,199.09 : 30,296.34 = 5,409.30 : x
  2. Step 2: Convert to fraction form
    20,199.09/30,296.34 = 5,409.30/x
  3. Step 3: Cross multiply
    20,199.09x = 30,296.34 × 5,409.30
  4. Step 4: Simplify right side
    20,199.09x = 163,881,991.96
  5. Step 5: Solve for x
    x = 163,881,991.96/20,199.09
  6. Step 6: Final answer
    x = 8,113.34

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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.