Home / 19,231.23-28,846.85-5,380.23

Finding the Fourth Proportional to 19,231.23, 28,846.85 and 5,380.23

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Solution

The fourth proportional to 19,231.23, 28,846.85 and 5,380.23 is: 8,070.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,231.23 : 28,846.85 = 5,380.23 : x
  2. Step 2: Convert to fraction form
    19,231.23/28,846.85 = 5,380.23/x
  3. Step 3: Cross multiply
    19,231.23x = 28,846.85 × 5,380.23
  4. Step 4: Simplify right side
    19,231.23x = 155,202,660.87
  5. Step 5: Solve for x
    x = 155,202,660.87/19,231.23
  6. Step 6: Final answer
    x = 8,070.35

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Double scale
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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.