Home / 43,628.48-65,436.24-15,920

Finding the Fourth Proportional to 43,628.48, 65,436.24 and 15,920

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Solution

The fourth proportional to 43,628.48, 65,436.24 and 15,920 is: 23,877.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,628.48 : 65,436.24 = 15,920 : x
  2. Step 2: Convert to fraction form
    43,628.48/65,436.24 = 15,920/x
  3. Step 3: Cross multiply
    43,628.48x = 65,436.24 × 15,920
  4. Step 4: Simplify right side
    43,628.48x = 1,041,744,940.80
  5. Step 5: Solve for x
    x = 1,041,744,940.80/43,628.48
  6. Step 6: Final answer
    x = 23,877.64

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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.