Home / 14,308.26-21,463.60-3,920

Finding the Fourth Proportional to 14,308.26, 21,463.60 and 3,920

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Solution

The fourth proportional to 14,308.26, 21,463.60 and 3,920 is: 5,880.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,308.26 : 21,463.60 = 3,920 : x
  2. Step 2: Convert to fraction form
    14,308.26/21,463.60 = 3,920/x
  3. Step 3: Cross multiply
    14,308.26x = 21,463.60 × 3,920
  4. Step 4: Simplify right side
    14,308.26x = 84,137,312
  5. Step 5: Solve for x
    x = 84,137,312/14,308.26
  6. Step 6: Final answer
    x = 5,880.33

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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.