Home / 19,105.60-28,657.71-5,065.75

Finding the Fourth Proportional to 19,105.60, 28,657.71 and 5,065.75

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Solution

The fourth proportional to 19,105.60, 28,657.71 and 5,065.75 is: 7,598.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,105.60 : 28,657.71 = 5,065.75 : x
  2. Step 2: Convert to fraction form
    19,105.60/28,657.71 = 5,065.75/x
  3. Step 3: Cross multiply
    19,105.60x = 28,657.71 × 5,065.75
  4. Step 4: Simplify right side
    19,105.60x = 145,172,794.43
  5. Step 5: Solve for x
    x = 145,172,794.43/19,105.60
  6. Step 6: Final answer
    x = 7,598.44

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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.