Home / 21,770.46-32,663.82-12,404.70

Finding the Fourth Proportional to 21,770.46, 32,663.82 and 12,404.70

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Solution

The fourth proportional to 21,770.46, 32,663.82 and 12,404.70 is: 18,611.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,770.46 : 32,663.82 = 12,404.70 : x
  2. Step 2: Convert to fraction form
    21,770.46/32,663.82 = 12,404.70/x
  3. Step 3: Cross multiply
    21,770.46x = 32,663.82 × 12,404.70
  4. Step 4: Simplify right side
    21,770.46x = 405,184,887.95
  5. Step 5: Solve for x
    x = 405,184,887.95/21,770.46
  6. Step 6: Final answer
    x = 18,611.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.