Home / 20,112.30-30,119.22-14,174.60

Finding the Fourth Proportional to 20,112.30, 30,119.22 and 14,174.60

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Solution

The fourth proportional to 20,112.30, 30,119.22 and 14,174.60 is: 21,227.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,112.30 : 30,119.22 = 14,174.60 : x
  2. Step 2: Convert to fraction form
    20,112.30/30,119.22 = 14,174.60/x
  3. Step 3: Cross multiply
    20,112.30x = 30,119.22 × 14,174.60
  4. Step 4: Simplify right side
    20,112.30x = 426,927,895.81
  5. Step 5: Solve for x
    x = 426,927,895.81/20,112.30
  6. Step 6: Final answer
    x = 21,227.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.