Home / 20,119.96-30,168.33-6,965.56

Finding the Fourth Proportional to 20,119.96, 30,168.33 and 6,965.56

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Solution

The fourth proportional to 20,119.96, 30,168.33 and 6,965.56 is: 10,444.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,119.96 : 30,168.33 = 6,965.56 : x
  2. Step 2: Convert to fraction form
    20,119.96/30,168.33 = 6,965.56/x
  3. Step 3: Cross multiply
    20,119.96x = 30,168.33 × 6,965.56
  4. Step 4: Simplify right side
    20,119.96x = 210,139,312.71
  5. Step 5: Solve for x
    x = 210,139,312.71/20,119.96
  6. Step 6: Final answer
    x = 10,444.32

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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.