Home / 20,219.28-30,329.04-6,368.16

Finding the Fourth Proportional to 20,219.28, 30,329.04 and 6,368.16

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Solution

The fourth proportional to 20,219.28, 30,329.04 and 6,368.16 is: 9,552.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219.28 : 30,329.04 = 6,368.16 : x
  2. Step 2: Convert to fraction form
    20,219.28/30,329.04 = 6,368.16/x
  3. Step 3: Cross multiply
    20,219.28x = 30,329.04 × 6,368.16
  4. Step 4: Simplify right side
    20,219.28x = 193,140,179.37
  5. Step 5: Solve for x
    x = 193,140,179.37/20,219.28
  6. Step 6: Final answer
    x = 9,552.28

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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.