Home / 22,108.36-30,509.22-12,172.36

Finding the Fourth Proportional to 22,108.36, 30,509.22 and 12,172.36

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Solution

The fourth proportional to 22,108.36, 30,509.22 and 12,172.36 is: 16,797.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,108.36 : 30,509.22 = 12,172.36 : x
  2. Step 2: Convert to fraction form
    22,108.36/30,509.22 = 12,172.36/x
  3. Step 3: Cross multiply
    22,108.36x = 30,509.22 × 12,172.36
  4. Step 4: Simplify right side
    22,108.36x = 371,369,209.16
  5. Step 5: Solve for x
    x = 371,369,209.16/22,108.36
  6. Step 6: Final answer
    x = 16,797.68

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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.