Home / 43,376.40-65,065.68-12,211.44

Finding the Fourth Proportional to 43,376.40, 65,065.68 and 12,211.44

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Solution

The fourth proportional to 43,376.40, 65,065.68 and 12,211.44 is: 18,317.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,376.40 : 65,065.68 = 12,211.44 : x
  2. Step 2: Convert to fraction form
    43,376.40/65,065.68 = 12,211.44/x
  3. Step 3: Cross multiply
    43,376.40x = 65,065.68 × 12,211.44
  4. Step 4: Simplify right side
    43,376.40x = 794,545,647.38
  5. Step 5: Solve for x
    x = 794,545,647.38/43,376.40
  6. Step 6: Final answer
    x = 18,317.46

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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.