Home / 28,764.18-43,163.04-12,123.18

Finding the Fourth Proportional to 28,764.18, 43,163.04 and 12,123.18

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Solution

The fourth proportional to 28,764.18, 43,163.04 and 12,123.18 is: 18,191.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,764.18 : 43,163.04 = 12,123.18 : x
  2. Step 2: Convert to fraction form
    28,764.18/43,163.04 = 12,123.18/x
  3. Step 3: Cross multiply
    28,764.18x = 43,163.04 × 12,123.18
  4. Step 4: Simplify right side
    28,764.18x = 523,273,303.27
  5. Step 5: Solve for x
    x = 523,273,303.27/28,764.18
  6. Step 6: Final answer
    x = 18,191.84

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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.