Home / 19,929.91-29,858.40-9,408.62

Finding the Fourth Proportional to 19,929.91, 29,858.40 and 9,408.62

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Solution

The fourth proportional to 19,929.91, 29,858.40 and 9,408.62 is: 14,095.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929.91 : 29,858.40 = 9,408.62 : x
  2. Step 2: Convert to fraction form
    19,929.91/29,858.40 = 9,408.62/x
  3. Step 3: Cross multiply
    19,929.91x = 29,858.40 × 9,408.62
  4. Step 4: Simplify right side
    19,929.91x = 280,926,339.41
  5. Step 5: Solve for x
    x = 280,926,339.41/19,929.91
  6. Step 6: Final answer
    x = 14,095.72

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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.