Home / 36,211.96-54,315.60-12,518.85

Finding the Fourth Proportional to 36,211.96, 54,315.60 and 12,518.85

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Solution

The fourth proportional to 36,211.96, 54,315.60 and 12,518.85 is: 18,777.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,211.96 : 54,315.60 = 12,518.85 : x
  2. Step 2: Convert to fraction form
    36,211.96/54,315.60 = 12,518.85/x
  3. Step 3: Cross multiply
    36,211.96x = 54,315.60 × 12,518.85
  4. Step 4: Simplify right side
    36,211.96x = 679,968,744.57
  5. Step 5: Solve for x
    x = 679,968,744.57/36,211.96
  6. Step 6: Final answer
    x = 18,777.47

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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.