Home / 21,647.54-29,874.91-12,087.43

Finding the Fourth Proportional to 21,647.54, 29,874.91 and 12,087.43

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Solution

The fourth proportional to 21,647.54, 29,874.91 and 12,087.43 is: 16,681.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,647.54 : 29,874.91 = 12,087.43 : x
  2. Step 2: Convert to fraction form
    21,647.54/29,874.91 = 12,087.43/x
  3. Step 3: Cross multiply
    21,647.54x = 29,874.91 × 12,087.43
  4. Step 4: Simplify right side
    21,647.54x = 361,110,852.13
  5. Step 5: Solve for x
    x = 361,110,852.13/21,647.54
  6. Step 6: Final answer
    x = 16,681.38

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1.5x scale

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.