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Finding the Fourth Proportional to 43,714.92, 65,549.79 and 14,128.90

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Solution

The fourth proportional to 43,714.92, 65,549.79 and 14,128.90 is: 21,186.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,714.92 : 65,549.79 = 14,128.90 : x
  2. Step 2: Convert to fraction form
    43,714.92/65,549.79 = 14,128.90/x
  3. Step 3: Cross multiply
    43,714.92x = 65,549.79 × 14,128.90
  4. Step 4: Simplify right side
    43,714.92x = 926,146,264.06
  5. Step 5: Solve for x
    x = 926,146,264.06/43,714.92
  6. Step 6: Final answer
    x = 21,186.04

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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.