Home / 15,438.56-23,157.77-3,751.88

Finding the Fourth Proportional to 15,438.56, 23,157.77 and 3,751.88

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Solution

The fourth proportional to 15,438.56, 23,157.77 and 3,751.88 is: 5,627.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,438.56 : 23,157.77 = 3,751.88 : x
  2. Step 2: Convert to fraction form
    15,438.56/23,157.77 = 3,751.88/x
  3. Step 3: Cross multiply
    15,438.56x = 23,157.77 × 3,751.88
  4. Step 4: Simplify right side
    15,438.56x = 86,885,039.56
  5. Step 5: Solve for x
    x = 86,885,039.56/15,438.56
  6. Step 6: Final answer
    x = 5,627.80

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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.