Home / 19,634.40-29,393.74-12,958.58

Finding the Fourth Proportional to 19,634.40, 29,393.74 and 12,958.58

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Solution

The fourth proportional to 19,634.40, 29,393.74 and 12,958.58 is: 19,399.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,634.40 : 29,393.74 = 12,958.58 : x
  2. Step 2: Convert to fraction form
    19,634.40/29,393.74 = 12,958.58/x
  3. Step 3: Cross multiply
    19,634.40x = 29,393.74 × 12,958.58
  4. Step 4: Simplify right side
    19,634.40x = 380,901,148.08
  5. Step 5: Solve for x
    x = 380,901,148.08/19,634.40
  6. Step 6: Final answer
    x = 19,399.68

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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.