Home / 30,083.88-45,118.56-12,544.20

Finding the Fourth Proportional to 30,083.88, 45,118.56 and 12,544.20

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Solution

The fourth proportional to 30,083.88, 45,118.56 and 12,544.20 is: 18,813.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,083.88 : 45,118.56 = 12,544.20 : x
  2. Step 2: Convert to fraction form
    30,083.88/45,118.56 = 12,544.20/x
  3. Step 3: Cross multiply
    30,083.88x = 45,118.56 × 12,544.20
  4. Step 4: Simplify right side
    30,083.88x = 565,976,240.35
  5. Step 5: Solve for x
    x = 565,976,240.35/30,083.88
  6. Step 6: Final answer
    x = 18,813.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.