Home / 21,498.21-29,664.23-12,064.95

Finding the Fourth Proportional to 21,498.21, 29,664.23 and 12,064.95

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Solution

The fourth proportional to 21,498.21, 29,664.23 and 12,064.95 is: 16,647.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,498.21 : 29,664.23 = 12,064.95 : x
  2. Step 2: Convert to fraction form
    21,498.21/29,664.23 = 12,064.95/x
  3. Step 3: Cross multiply
    21,498.21x = 29,664.23 × 12,064.95
  4. Step 4: Simplify right side
    21,498.21x = 357,897,391.41
  5. Step 5: Solve for x
    x = 357,897,391.41/21,498.21
  6. Step 6: Final answer
    x = 16,647.78

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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.