Home / 19,020.69-28,539.54-10,245.42

Finding the Fourth Proportional to 19,020.69, 28,539.54 and 10,245.42

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Solution

The fourth proportional to 19,020.69, 28,539.54 and 10,245.42 is: 15,372.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,020.69 : 28,539.54 = 10,245.42 : x
  2. Step 2: Convert to fraction form
    19,020.69/28,539.54 = 10,245.42/x
  3. Step 3: Cross multiply
    19,020.69x = 28,539.54 × 10,245.42
  4. Step 4: Simplify right side
    19,020.69x = 292,399,573.91
  5. Step 5: Solve for x
    x = 292,399,573.91/19,020.69
  6. Step 6: Final answer
    x = 15,372.71

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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.