Home / 30,172.12-41,637.64-16,745.31

Finding the Fourth Proportional to 30,172.12, 41,637.64 and 16,745.31

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Solution

The fourth proportional to 30,172.12, 41,637.64 and 16,745.31 is: 23,108.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,172.12 : 41,637.64 = 16,745.31 : x
  2. Step 2: Convert to fraction form
    30,172.12/41,637.64 = 16,745.31/x
  3. Step 3: Cross multiply
    30,172.12x = 41,637.64 × 16,745.31
  4. Step 4: Simplify right side
    30,172.12x = 697,234,897.55
  5. Step 5: Solve for x
    x = 697,234,897.55/30,172.12
  6. Step 6: Final answer
    x = 23,108.58

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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.