Home / 29,181.51-40,222.05-20,672.73

Finding the Fourth Proportional to 29,181.51, 40,222.05 and 20,672.73

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Solution

The fourth proportional to 29,181.51, 40,222.05 and 20,672.73 is: 28,494.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,181.51 : 40,222.05 = 20,672.73 : x
  2. Step 2: Convert to fraction form
    29,181.51/40,222.05 = 20,672.73/x
  3. Step 3: Cross multiply
    29,181.51x = 40,222.05 × 20,672.73
  4. Step 4: Simplify right side
    29,181.51x = 831,499,579.70
  5. Step 5: Solve for x
    x = 831,499,579.70/29,181.51
  6. Step 6: Final answer
    x = 28,494.06

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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.