Home / 43,808.40-65,705.41-12,220.61

Finding the Fourth Proportional to 43,808.40, 65,705.41 and 12,220.61

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Solution

The fourth proportional to 43,808.40, 65,705.41 and 12,220.61 is: 18,328.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,808.40 : 65,705.41 = 12,220.61 : x
  2. Step 2: Convert to fraction form
    43,808.40/65,705.41 = 12,220.61/x
  3. Step 3: Cross multiply
    43,808.40x = 65,705.41 × 12,220.61
  4. Step 4: Simplify right side
    43,808.40x = 802,960,190.50
  5. Step 5: Solve for x
    x = 802,960,190.50/43,808.40
  6. Step 6: Final answer
    x = 18,328.91

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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.