Home / 29,639.44-40,892.84-21,142.96

Finding the Fourth Proportional to 29,639.44, 40,892.84 and 21,142.96

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Solution

The fourth proportional to 29,639.44, 40,892.84 and 21,142.96 is: 29,170.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,639.44 : 40,892.84 = 21,142.96 : x
  2. Step 2: Convert to fraction form
    29,639.44/40,892.84 = 21,142.96/x
  3. Step 3: Cross multiply
    29,639.44x = 40,892.84 × 21,142.96
  4. Step 4: Simplify right side
    29,639.44x = 864,595,680.41
  5. Step 5: Solve for x
    x = 864,595,680.41/29,639.44
  6. Step 6: Final answer
    x = 29,170.45

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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.