Home / 19,719.86-29,563.80-13,464.12

Finding the Fourth Proportional to 19,719.86, 29,563.80 and 13,464.12

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Solution

The fourth proportional to 19,719.86, 29,563.80 and 13,464.12 is: 20,185.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,719.86 : 29,563.80 = 13,464.12 : x
  2. Step 2: Convert to fraction form
    19,719.86/29,563.80 = 13,464.12/x
  3. Step 3: Cross multiply
    19,719.86x = 29,563.80 × 13,464.12
  4. Step 4: Simplify right side
    19,719.86x = 398,050,550.86
  5. Step 5: Solve for x
    x = 398,050,550.86/19,719.86
  6. Step 6: Final answer
    x = 20,185.26

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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.