Home / 21,041.88-29,028.68-12,087.34

Finding the Fourth Proportional to 21,041.88, 29,028.68 and 12,087.34

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Solution

The fourth proportional to 21,041.88, 29,028.68 and 12,087.34 is: 16,675.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,041.88 : 29,028.68 = 12,087.34 : x
  2. Step 2: Convert to fraction form
    21,041.88/29,028.68 = 12,087.34/x
  3. Step 3: Cross multiply
    21,041.88x = 29,028.68 × 12,087.34
  4. Step 4: Simplify right side
    21,041.88x = 350,879,524.91
  5. Step 5: Solve for x
    x = 350,879,524.91/21,041.88
  6. Step 6: Final answer
    x = 16,675.29

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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.