Home / 21,525.21-29,705.67-12,093.75

Finding the Fourth Proportional to 21,525.21, 29,705.67 and 12,093.75

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Solution

The fourth proportional to 21,525.21, 29,705.67 and 12,093.75 is: 16,689.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,525.21 : 29,705.67 = 12,093.75 : x
  2. Step 2: Convert to fraction form
    21,525.21/29,705.67 = 12,093.75/x
  3. Step 3: Cross multiply
    21,525.21x = 29,705.67 × 12,093.75
  4. Step 4: Simplify right side
    21,525.21x = 359,252,946.56
  5. Step 5: Solve for x
    x = 359,252,946.56/21,525.21
  6. Step 6: Final answer
    x = 16,689.87

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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.