Home / 29,511.36-40,734.24-19,447.20

Finding the Fourth Proportional to 29,511.36, 40,734.24 and 19,447.20

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Solution

The fourth proportional to 29,511.36, 40,734.24 and 19,447.20 is: 26,842.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,511.36 : 40,734.24 = 19,447.20 : x
  2. Step 2: Convert to fraction form
    29,511.36/40,734.24 = 19,447.20/x
  3. Step 3: Cross multiply
    29,511.36x = 40,734.24 × 19,447.20
  4. Step 4: Simplify right side
    29,511.36x = 792,166,912.13
  5. Step 5: Solve for x
    x = 792,166,912.13/29,511.36
  6. Step 6: Final answer
    x = 26,842.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.