Home / 22,208.75-30,647.53-12,137.21

Finding the Fourth Proportional to 22,208.75, 30,647.53 and 12,137.21

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Solution

The fourth proportional to 22,208.75, 30,647.53 and 12,137.21 is: 16,749.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,208.75 : 30,647.53 = 12,137.21 : x
  2. Step 2: Convert to fraction form
    22,208.75/30,647.53 = 12,137.21/x
  3. Step 3: Cross multiply
    22,208.75x = 30,647.53 × 12,137.21
  4. Step 4: Simplify right side
    22,208.75x = 371,975,507.59
  5. Step 5: Solve for x
    x = 371,975,507.59/22,208.75
  6. Step 6: Final answer
    x = 16,749.05

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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.