Home / 25,644.96-38,467.04-13,157.78

Finding the Fourth Proportional to 25,644.96, 38,467.04 and 13,157.78

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Solution

The fourth proportional to 25,644.96, 38,467.04 and 13,157.78 is: 19,736.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,644.96 : 38,467.04 = 13,157.78 : x
  2. Step 2: Convert to fraction form
    25,644.96/38,467.04 = 13,157.78/x
  3. Step 3: Cross multiply
    25,644.96x = 38,467.04 × 13,157.78
  4. Step 4: Simplify right side
    25,644.96x = 506,140,773.65
  5. Step 5: Solve for x
    x = 506,140,773.65/25,644.96
  6. Step 6: Final answer
    x = 19,736.46

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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.