Home / 53,213.42-79,821.80-19,927.14

Finding the Fourth Proportional to 53,213.42, 79,821.80 and 19,927.14

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Solution

The fourth proportional to 53,213.42, 79,821.80 and 19,927.14 is: 29,891.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,213.42 : 79,821.80 = 19,927.14 : x
  2. Step 2: Convert to fraction form
    53,213.42/79,821.80 = 19,927.14/x
  3. Step 3: Cross multiply
    53,213.42x = 79,821.80 × 19,927.14
  4. Step 4: Simplify right side
    53,213.42x = 1,590,620,183.65
  5. Step 5: Solve for x
    x = 1,590,620,183.65/53,213.42
  6. Step 6: Final answer
    x = 29,891.34

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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.