Home / 19,230.56-28,847.40-5,379.56

Finding the Fourth Proportional to 19,230.56, 28,847.40 and 5,379.56

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Solution

The fourth proportional to 19,230.56, 28,847.40 and 5,379.56 is: 8,069.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,230.56 : 28,847.40 = 5,379.56 : x
  2. Step 2: Convert to fraction form
    19,230.56/28,847.40 = 5,379.56/x
  3. Step 3: Cross multiply
    19,230.56x = 28,847.40 × 5,379.56
  4. Step 4: Simplify right side
    19,230.56x = 155,186,319.14
  5. Step 5: Solve for x
    x = 155,186,319.14/19,230.56
  6. Step 6: Final answer
    x = 8,069.78

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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.