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Finding the Fourth Proportional to 29,809.60, 44,714.40 and 18,728.80

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Solution

The fourth proportional to 29,809.60, 44,714.40 and 18,728.80 is: 28,093.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,809.60 : 44,714.40 = 18,728.80 : x
  2. Step 2: Convert to fraction form
    29,809.60/44,714.40 = 18,728.80/x
  3. Step 3: Cross multiply
    29,809.60x = 44,714.40 × 18,728.80
  4. Step 4: Simplify right side
    29,809.60x = 837,447,054.72
  5. Step 5: Solve for x
    x = 837,447,054.72/29,809.60
  6. Step 6: Final answer
    x = 28,093.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.