Home / 22,201.08-30,636.54-12,129.36

Finding the Fourth Proportional to 22,201.08, 30,636.54 and 12,129.36

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Solution

The fourth proportional to 22,201.08, 30,636.54 and 12,129.36 is: 16,738.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,201.08 : 30,636.54 = 12,129.36 : x
  2. Step 2: Convert to fraction form
    22,201.08/30,636.54 = 12,129.36/x
  3. Step 3: Cross multiply
    22,201.08x = 30,636.54 × 12,129.36
  4. Step 4: Simplify right side
    22,201.08x = 371,601,622.81
  5. Step 5: Solve for x
    x = 371,601,622.81/22,201.08
  6. Step 6: Final answer
    x = 16,738.00

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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.