Home / 30,188.95-41,660.91-18,865.03

Finding the Fourth Proportional to 30,188.95, 41,660.91 and 18,865.03

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Solution

The fourth proportional to 30,188.95, 41,660.91 and 18,865.03 is: 26,033.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,188.95 : 41,660.91 = 18,865.03 : x
  2. Step 2: Convert to fraction form
    30,188.95/41,660.91 = 18,865.03/x
  3. Step 3: Cross multiply
    30,188.95x = 41,660.91 × 18,865.03
  4. Step 4: Simplify right side
    30,188.95x = 785,934,316.98
  5. Step 5: Solve for x
    x = 785,934,316.98/30,188.95
  6. Step 6: Final answer
    x = 26,033.84

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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.