Home / 20,173.96-30,263.82-6,318.28

Finding the Fourth Proportional to 20,173.96, 30,263.82 and 6,318.28

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Solution

The fourth proportional to 20,173.96, 30,263.82 and 6,318.28 is: 9,478.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,173.96 : 30,263.82 = 6,318.28 : x
  2. Step 2: Convert to fraction form
    20,173.96/30,263.82 = 6,318.28/x
  3. Step 3: Cross multiply
    20,173.96x = 30,263.82 × 6,318.28
  4. Step 4: Simplify right side
    20,173.96x = 191,215,288.63
  5. Step 5: Solve for x
    x = 191,215,288.63/20,173.96
  6. Step 6: Final answer
    x = 9,478.32

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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.