Home / 28,830.18-43,247.09-12,188.02

Finding the Fourth Proportional to 28,830.18, 43,247.09 and 12,188.02

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Solution

The fourth proportional to 28,830.18, 43,247.09 and 12,188.02 is: 18,282.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,830.18 : 43,247.09 = 12,188.02 : x
  2. Step 2: Convert to fraction form
    28,830.18/43,247.09 = 12,188.02/x
  3. Step 3: Cross multiply
    28,830.18x = 43,247.09 × 12,188.02
  4. Step 4: Simplify right side
    28,830.18x = 527,096,228.80
  5. Step 5: Solve for x
    x = 527,096,228.80/28,830.18
  6. Step 6: Final answer
    x = 18,282.80

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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.