Home / 30,172.58-41,638.53-16,745.16

Finding the Fourth Proportional to 30,172.58, 41,638.53 and 16,745.16

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Solution

The fourth proportional to 30,172.58, 41,638.53 and 16,745.16 is: 23,108.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,172.58 : 41,638.53 = 16,745.16 : x
  2. Step 2: Convert to fraction form
    30,172.58/41,638.53 = 16,745.16/x
  3. Step 3: Cross multiply
    30,172.58x = 41,638.53 × 16,745.16
  4. Step 4: Simplify right side
    30,172.58x = 697,243,847.01
  5. Step 5: Solve for x
    x = 697,243,847.01/30,172.58
  6. Step 6: Final answer
    x = 23,108.53

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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.