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Finding the Fourth Proportional to 44,162.40, 66,220.80 and 12,993.60

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Solution

The fourth proportional to 44,162.40, 66,220.80 and 12,993.60 is: 19,483.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,162.40 : 66,220.80 = 12,993.60 : x
  2. Step 2: Convert to fraction form
    44,162.40/66,220.80 = 12,993.60/x
  3. Step 3: Cross multiply
    44,162.40x = 66,220.80 × 12,993.60
  4. Step 4: Simplify right side
    44,162.40x = 860,446,586.88
  5. Step 5: Solve for x
    x = 860,446,586.88/44,162.40
  6. Step 6: Final answer
    x = 19,483.69

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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.