Home / 30,216.32-41,685.11-20,134.95

Finding the Fourth Proportional to 30,216.32, 41,685.11 and 20,134.95

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Solution

The fourth proportional to 30,216.32, 41,685.11 and 20,134.95 is: 27,777.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,216.32 : 41,685.11 = 20,134.95 : x
  2. Step 2: Convert to fraction form
    30,216.32/41,685.11 = 20,134.95/x
  3. Step 3: Cross multiply
    30,216.32x = 41,685.11 × 20,134.95
  4. Step 4: Simplify right side
    30,216.32x = 839,327,537.37
  5. Step 5: Solve for x
    x = 839,327,537.37/30,216.32
  6. Step 6: Final answer
    x = 27,777.29

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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.