Home / 47,912.64-71,842.20-19,817.04

Finding the Fourth Proportional to 47,912.64, 71,842.20 and 19,817.04

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Solution

The fourth proportional to 47,912.64, 71,842.20 and 19,817.04 is: 29,714.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,912.64 : 71,842.20 = 19,817.04 : x
  2. Step 2: Convert to fraction form
    47,912.64/71,842.20 = 19,817.04/x
  3. Step 3: Cross multiply
    47,912.64x = 71,842.20 × 19,817.04
  4. Step 4: Simplify right side
    47,912.64x = 1,423,699,751.09
  5. Step 5: Solve for x
    x = 1,423,699,751.09/47,912.64
  6. Step 6: Final answer
    x = 29,714.49

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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.