Home / 30,291.75-41,837.61-20,202.66

Finding the Fourth Proportional to 30,291.75, 41,837.61 and 20,202.66

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Solution

The fourth proportional to 30,291.75, 41,837.61 and 20,202.66 is: 27,903.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,291.75 : 41,837.61 = 20,202.66 : x
  2. Step 2: Convert to fraction form
    30,291.75/41,837.61 = 20,202.66/x
  3. Step 3: Cross multiply
    30,291.75x = 41,837.61 × 20,202.66
  4. Step 4: Simplify right side
    30,291.75x = 845,231,010.04
  5. Step 5: Solve for x
    x = 845,231,010.04/30,291.75
  6. Step 6: Final answer
    x = 27,903.01

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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.