Home / 20,007.44-29,987.20-9,319.39

Finding the Fourth Proportional to 20,007.44, 29,987.20 and 9,319.39

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Solution

The fourth proportional to 20,007.44, 29,987.20 and 9,319.39 is: 13,967.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,007.44 : 29,987.20 = 9,319.39 : x
  2. Step 2: Convert to fraction form
    20,007.44/29,987.20 = 9,319.39/x
  3. Step 3: Cross multiply
    20,007.44x = 29,987.20 × 9,319.39
  4. Step 4: Simplify right side
    20,007.44x = 279,462,464.75
  5. Step 5: Solve for x
    x = 279,462,464.75/20,007.44
  6. Step 6: Final answer
    x = 13,967.92

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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.