Home / 43,577.95-65,358.32-11,979.86

Finding the Fourth Proportional to 43,577.95, 65,358.32 and 11,979.86

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Solution

The fourth proportional to 43,577.95, 65,358.32 and 11,979.86 is: 17,967.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,577.95 : 65,358.32 = 11,979.86 : x
  2. Step 2: Convert to fraction form
    43,577.95/65,358.32 = 11,979.86/x
  3. Step 3: Cross multiply
    43,577.95x = 65,358.32 × 11,979.86
  4. Step 4: Simplify right side
    43,577.95x = 782,983,136.74
  5. Step 5: Solve for x
    x = 782,983,136.74/43,577.95
  6. Step 6: Final answer
    x = 17,967.42

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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.