Home / 30,157.11-41,589.56-18,827.64

Finding the Fourth Proportional to 30,157.11, 41,589.56 and 18,827.64

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Solution

The fourth proportional to 30,157.11, 41,589.56 and 18,827.64 is: 25,965.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,157.11 : 41,589.56 = 18,827.64 : x
  2. Step 2: Convert to fraction form
    30,157.11/41,589.56 = 18,827.64/x
  3. Step 3: Cross multiply
    30,157.11x = 41,589.56 × 18,827.64
  4. Step 4: Simplify right side
    30,157.11x = 783,033,169.30
  5. Step 5: Solve for x
    x = 783,033,169.30/30,157.11
  6. Step 6: Final answer
    x = 25,965.13

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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.