Home / 30,347.26-41,876.19-18,409.88

Finding the Fourth Proportional to 30,347.26, 41,876.19 and 18,409.88

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Solution

The fourth proportional to 30,347.26, 41,876.19 and 18,409.88 is: 25,403.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,347.26 : 41,876.19 = 18,409.88 : x
  2. Step 2: Convert to fraction form
    30,347.26/41,876.19 = 18,409.88/x
  3. Step 3: Cross multiply
    30,347.26x = 41,876.19 × 18,409.88
  4. Step 4: Simplify right side
    30,347.26x = 770,935,737.45
  5. Step 5: Solve for x
    x = 770,935,737.45/30,347.26
  6. Step 6: Final answer
    x = 25,403.80

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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.