Home / 22,271.40-30,734.20-12,199.72

Finding the Fourth Proportional to 22,271.40, 30,734.20 and 12,199.72

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Solution

The fourth proportional to 22,271.40, 30,734.20 and 12,199.72 is: 16,835.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,271.40 : 30,734.20 = 12,199.72 : x
  2. Step 2: Convert to fraction form
    22,271.40/30,734.20 = 12,199.72/x
  3. Step 3: Cross multiply
    22,271.40x = 30,734.20 × 12,199.72
  4. Step 4: Simplify right side
    22,271.40x = 374,948,634.42
  5. Step 5: Solve for x
    x = 374,948,634.42/22,271.40
  6. Step 6: Final answer
    x = 16,835.43

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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.