Home / 28,848.60-43,289.10-12,205.80

Finding the Fourth Proportional to 28,848.60, 43,289.10 and 12,205.80

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Solution

The fourth proportional to 28,848.60, 43,289.10 and 12,205.80 is: 18,315.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,848.60 : 43,289.10 = 12,205.80 : x
  2. Step 2: Convert to fraction form
    28,848.60/43,289.10 = 12,205.80/x
  3. Step 3: Cross multiply
    28,848.60x = 43,289.10 × 12,205.80
  4. Step 4: Simplify right side
    28,848.60x = 528,378,096.78
  5. Step 5: Solve for x
    x = 528,378,096.78/28,848.60
  6. Step 6: Final answer
    x = 18,315.55

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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.