Home / 19,099.20-28,648.80-13,267.20

Finding the Fourth Proportional to 19,099.20, 28,648.80 and 13,267.20

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Solution

The fourth proportional to 19,099.20, 28,648.80 and 13,267.20 is: 19,900.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,099.20 : 28,648.80 = 13,267.20 : x
  2. Step 2: Convert to fraction form
    19,099.20/28,648.80 = 13,267.20/x
  3. Step 3: Cross multiply
    19,099.20x = 28,648.80 × 13,267.20
  4. Step 4: Simplify right side
    19,099.20x = 380,089,359.36
  5. Step 5: Solve for x
    x = 380,089,359.36/19,099.20
  6. Step 6: Final answer
    x = 19,900.80

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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.