Home / 14,317.72-21,476.99-3,929.47

Finding the Fourth Proportional to 14,317.72, 21,476.99 and 3,929.47

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Solution

The fourth proportional to 14,317.72, 21,476.99 and 3,929.47 is: 5,894.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,317.72 : 21,476.99 = 3,929.47 : x
  2. Step 2: Convert to fraction form
    14,317.72/21,476.99 = 3,929.47/x
  3. Step 3: Cross multiply
    14,317.72x = 21,476.99 × 3,929.47
  4. Step 4: Simplify right side
    14,317.72x = 84,393,168.25
  5. Step 5: Solve for x
    x = 84,393,168.25/14,317.72
  6. Step 6: Final answer
    x = 5,894.32

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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.