Home / 29,181.36-40,303.80-21,258.96

Finding the Fourth Proportional to 29,181.36, 40,303.80 and 21,258.96

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Solution

The fourth proportional to 29,181.36, 40,303.80 and 21,258.96 is: 29,361.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,181.36 : 40,303.80 = 21,258.96 : x
  2. Step 2: Convert to fraction form
    29,181.36/40,303.80 = 21,258.96/x
  3. Step 3: Cross multiply
    29,181.36x = 40,303.80 × 21,258.96
  4. Step 4: Simplify right side
    29,181.36x = 856,816,872.05
  5. Step 5: Solve for x
    x = 856,816,872.05/29,181.36
  6. Step 6: Final answer
    x = 29,361.79

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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.