Home / 30,119.88-41,563.80-16,690.32

Finding the Fourth Proportional to 30,119.88, 41,563.80 and 16,690.32

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Solution

The fourth proportional to 30,119.88, 41,563.80 and 16,690.32 is: 23,031.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,119.88 : 41,563.80 = 16,690.32 : x
  2. Step 2: Convert to fraction form
    30,119.88/41,563.80 = 16,690.32/x
  3. Step 3: Cross multiply
    30,119.88x = 41,563.80 × 16,690.32
  4. Step 4: Simplify right side
    30,119.88x = 693,713,122.42
  5. Step 5: Solve for x
    x = 693,713,122.42/30,119.88
  6. Step 6: Final answer
    x = 23,031.74

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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.