Home / 29,728.23-40,994.32-20,772.46

Finding the Fourth Proportional to 29,728.23, 40,994.32 and 20,772.46

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Solution

The fourth proportional to 29,728.23, 40,994.32 and 20,772.46 is: 28,644.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,728.23 : 40,994.32 = 20,772.46 : x
  2. Step 2: Convert to fraction form
    29,728.23/40,994.32 = 20,772.46/x
  3. Step 3: Cross multiply
    29,728.23x = 40,994.32 × 20,772.46
  4. Step 4: Simplify right side
    29,728.23x = 851,552,872.43
  5. Step 5: Solve for x
    x = 851,552,872.43/29,728.23
  6. Step 6: Final answer
    x = 28,644.59

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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.