Home / 19,305.96-29,007.44-12,289.08

Finding the Fourth Proportional to 19,305.96, 29,007.44 and 12,289.08

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Solution

The fourth proportional to 19,305.96, 29,007.44 and 12,289.08 is: 18,464.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,305.96 : 29,007.44 = 12,289.08 : x
  2. Step 2: Convert to fraction form
    19,305.96/29,007.44 = 12,289.08/x
  3. Step 3: Cross multiply
    19,305.96x = 29,007.44 × 12,289.08
  4. Step 4: Simplify right side
    19,305.96x = 356,474,750.76
  5. Step 5: Solve for x
    x = 356,474,750.76/19,305.96
  6. Step 6: Final answer
    x = 18,464.49

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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.