Home / 19,406.20-29,109.44-10,636.32

Finding the Fourth Proportional to 19,406.20, 29,109.44 and 10,636.32

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Solution

The fourth proportional to 19,406.20, 29,109.44 and 10,636.32 is: 15,954.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,406.20 : 29,109.44 = 10,636.32 : x
  2. Step 2: Convert to fraction form
    19,406.20/29,109.44 = 10,636.32/x
  3. Step 3: Cross multiply
    19,406.20x = 29,109.44 × 10,636.32
  4. Step 4: Simplify right side
    19,406.20x = 309,617,318.86
  5. Step 5: Solve for x
    x = 309,617,318.86/19,406.20
  6. Step 6: Final answer
    x = 15,954.56

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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.