Home / 29,109.45-43,664.16-12,458.69

Finding the Fourth Proportional to 29,109.45, 43,664.16 and 12,458.69

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Solution

The fourth proportional to 29,109.45, 43,664.16 and 12,458.69 is: 18,688.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,109.45 : 43,664.16 = 12,458.69 : x
  2. Step 2: Convert to fraction form
    29,109.45/43,664.16 = 12,458.69/x
  3. Step 3: Cross multiply
    29,109.45x = 43,664.16 × 12,458.69
  4. Step 4: Simplify right side
    29,109.45x = 543,998,015.23
  5. Step 5: Solve for x
    x = 543,998,015.23/29,109.45
  6. Step 6: Final answer
    x = 18,688.02

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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.