Home / 30,188.16-41,645.19-21,240.60

Finding the Fourth Proportional to 30,188.16, 41,645.19 and 21,240.60

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Solution

The fourth proportional to 30,188.16, 41,645.19 and 21,240.60 is: 29,301.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,188.16 : 41,645.19 = 21,240.60 : x
  2. Step 2: Convert to fraction form
    30,188.16/41,645.19 = 21,240.60/x
  3. Step 3: Cross multiply
    30,188.16x = 41,645.19 × 21,240.60
  4. Step 4: Simplify right side
    30,188.16x = 884,568,626.72
  5. Step 5: Solve for x
    x = 884,568,626.72/30,188.16
  6. Step 6: Final answer
    x = 29,301.84

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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.