Home / 14,036.48-21,028.80-12,481.28

Finding the Fourth Proportional to 14,036.48, 21,028.80 and 12,481.28

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Solution

The fourth proportional to 14,036.48, 21,028.80 and 12,481.28 is: 18,698.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,036.48 : 21,028.80 = 12,481.28 : x
  2. Step 2: Convert to fraction form
    14,036.48/21,028.80 = 12,481.28/x
  3. Step 3: Cross multiply
    14,036.48x = 21,028.80 × 12,481.28
  4. Step 4: Simplify right side
    14,036.48x = 262,466,340.86
  5. Step 5: Solve for x
    x = 262,466,340.86/14,036.48
  6. Step 6: Final answer
    x = 18,698.87

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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.