Home / 20,634.36-28,466.28-12,246

Finding the Fourth Proportional to 20,634.36, 28,466.28 and 12,246

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Solution

The fourth proportional to 20,634.36, 28,466.28 and 12,246 is: 16,894.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,634.36 : 28,466.28 = 12,246 : x
  2. Step 2: Convert to fraction form
    20,634.36/28,466.28 = 12,246/x
  3. Step 3: Cross multiply
    20,634.36x = 28,466.28 × 12,246
  4. Step 4: Simplify right side
    20,634.36x = 348,598,064.88
  5. Step 5: Solve for x
    x = 348,598,064.88/20,634.36
  6. Step 6: Final answer
    x = 16,894.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.