Home / 35,679.58-53,525.55-11,989.43

Finding the Fourth Proportional to 35,679.58, 53,525.55 and 11,989.43

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Solution

The fourth proportional to 35,679.58, 53,525.55 and 11,989.43 is: 17,986.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,679.58 : 53,525.55 = 11,989.43 : x
  2. Step 2: Convert to fraction form
    35,679.58/53,525.55 = 11,989.43/x
  3. Step 3: Cross multiply
    35,679.58x = 53,525.55 × 11,989.43
  4. Step 4: Simplify right side
    35,679.58x = 641,740,834.94
  5. Step 5: Solve for x
    x = 641,740,834.94/35,679.58
  6. Step 6: Final answer
    x = 17,986.22

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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.