Home / 43,485.68-65,196.60-13,886.48

Finding the Fourth Proportional to 43,485.68, 65,196.60 and 13,886.48

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Solution

The fourth proportional to 43,485.68, 65,196.60 and 13,886.48 is: 20,819.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,485.68 : 65,196.60 = 13,886.48 : x
  2. Step 2: Convert to fraction form
    43,485.68/65,196.60 = 13,886.48/x
  3. Step 3: Cross multiply
    43,485.68x = 65,196.60 × 13,886.48
  4. Step 4: Simplify right side
    43,485.68x = 905,351,281.97
  5. Step 5: Solve for x
    x = 905,351,281.97/43,485.68
  6. Step 6: Final answer
    x = 20,819.53

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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.