Home / 34,701.12-51,991.20-20,819.52

Finding the Fourth Proportional to 34,701.12, 51,991.20 and 20,819.52

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Solution

The fourth proportional to 34,701.12, 51,991.20 and 20,819.52 is: 31,192.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,701.12 : 51,991.20 = 20,819.52 : x
  2. Step 2: Convert to fraction form
    34,701.12/51,991.20 = 20,819.52/x
  3. Step 3: Cross multiply
    34,701.12x = 51,991.20 × 20,819.52
  4. Step 4: Simplify right side
    34,701.12x = 1,082,431,828.22
  5. Step 5: Solve for x
    x = 1,082,431,828.22/34,701.12
  6. Step 6: Final answer
    x = 31,192.99

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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.