Home / 43,515.78-65,267.16-13,930.56

Finding the Fourth Proportional to 43,515.78, 65,267.16 and 13,930.56

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Solution

The fourth proportional to 43,515.78, 65,267.16 and 13,930.56 is: 20,893.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,515.78 : 65,267.16 = 13,930.56 : x
  2. Step 2: Convert to fraction form
    43,515.78/65,267.16 = 13,930.56/x
  3. Step 3: Cross multiply
    43,515.78x = 65,267.16 × 13,930.56
  4. Step 4: Simplify right side
    43,515.78x = 909,208,088.41
  5. Step 5: Solve for x
    x = 909,208,088.41/43,515.78
  6. Step 6: Final answer
    x = 20,893.76

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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.