Home / 43,357.88-65,041.15-11,768.45

Finding the Fourth Proportional to 43,357.88, 65,041.15 and 11,768.45

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Solution

The fourth proportional to 43,357.88, 65,041.15 and 11,768.45 is: 17,653.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,357.88 : 65,041.15 = 11,768.45 : x
  2. Step 2: Convert to fraction form
    43,357.88/65,041.15 = 11,768.45/x
  3. Step 3: Cross multiply
    43,357.88x = 65,041.15 × 11,768.45
  4. Step 4: Simplify right side
    43,357.88x = 765,433,521.72
  5. Step 5: Solve for x
    x = 765,433,521.72/43,357.88
  6. Step 6: Final answer
    x = 17,653.85

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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.