Home / 30,285.48-41,811.35-20,247.15

Finding the Fourth Proportional to 30,285.48, 41,811.35 and 20,247.15

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Solution

The fourth proportional to 30,285.48, 41,811.35 and 20,247.15 is: 27,952.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,285.48 : 41,811.35 = 20,247.15 : x
  2. Step 2: Convert to fraction form
    30,285.48/41,811.35 = 20,247.15/x
  3. Step 3: Cross multiply
    30,285.48x = 41,811.35 × 20,247.15
  4. Step 4: Simplify right side
    30,285.48x = 846,560,675.15
  5. Step 5: Solve for x
    x = 846,560,675.15/30,285.48
  6. Step 6: Final answer
    x = 27,952.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.