Home / 43,436.44-65,153.31-13,856.05

Finding the Fourth Proportional to 43,436.44, 65,153.31 and 13,856.05

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Solution

The fourth proportional to 43,436.44, 65,153.31 and 13,856.05 is: 20,783.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,436.44 : 65,153.31 = 13,856.05 : x
  2. Step 2: Convert to fraction form
    43,436.44/65,153.31 = 13,856.05/x
  3. Step 3: Cross multiply
    43,436.44x = 65,153.31 × 13,856.05
  4. Step 4: Simplify right side
    43,436.44x = 902,767,521.03
  5. Step 5: Solve for x
    x = 902,767,521.03/43,436.44
  6. Step 6: Final answer
    x = 20,783.64

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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.