Home / 23,157.65-34,782.98-13,815.90

Finding the Fourth Proportional to 23,157.65, 34,782.98 and 13,815.90

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Solution

The fourth proportional to 23,157.65, 34,782.98 and 13,815.90 is: 20,751.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,157.65 : 34,782.98 = 13,815.90 : x
  2. Step 2: Convert to fraction form
    23,157.65/34,782.98 = 13,815.90/x
  3. Step 3: Cross multiply
    23,157.65x = 34,782.98 × 13,815.90
  4. Step 4: Simplify right side
    23,157.65x = 480,557,930.39
  5. Step 5: Solve for x
    x = 480,557,930.39/23,157.65
  6. Step 6: Final answer
    x = 20,751.58

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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.