Home / 19,211.60-28,815.48-5,362.64

Finding the Fourth Proportional to 19,211.60, 28,815.48 and 5,362.64

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Solution

The fourth proportional to 19,211.60, 28,815.48 and 5,362.64 is: 8,043.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,211.60 : 28,815.48 = 5,362.64 : x
  2. Step 2: Convert to fraction form
    19,211.60/28,815.48 = 5,362.64/x
  3. Step 3: Cross multiply
    19,211.60x = 28,815.48 × 5,362.64
  4. Step 4: Simplify right side
    19,211.60x = 154,527,045.67
  5. Step 5: Solve for x
    x = 154,527,045.67/19,211.60
  6. Step 6: Final answer
    x = 8,043.42

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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.