Home / 14,304.48-21,456-3,916.32

Finding the Fourth Proportional to 14,304.48, 21,456 and 3,916.32

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Solution

The fourth proportional to 14,304.48, 21,456 and 3,916.32 is: 5,874.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,304.48 : 21,456 = 3,916.32 : x
  2. Step 2: Convert to fraction form
    14,304.48/21,456 = 3,916.32/x
  3. Step 3: Cross multiply
    14,304.48x = 21,456 × 3,916.32
  4. Step 4: Simplify right side
    14,304.48x = 84,028,561.92
  5. Step 5: Solve for x
    x = 84,028,561.92/14,304.48
  6. Step 6: Final answer
    x = 5,874.28

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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.