Home / 22,180.23-33,270.35-12,939.75

Finding the Fourth Proportional to 22,180.23, 33,270.35 and 12,939.75

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Solution

The fourth proportional to 22,180.23, 33,270.35 and 12,939.75 is: 19,409.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,180.23 : 33,270.35 = 12,939.75 : x
  2. Step 2: Convert to fraction form
    22,180.23/33,270.35 = 12,939.75/x
  3. Step 3: Cross multiply
    22,180.23x = 33,270.35 × 12,939.75
  4. Step 4: Simplify right side
    22,180.23x = 430,509,946.71
  5. Step 5: Solve for x
    x = 430,509,946.71/22,180.23
  6. Step 6: Final answer
    x = 19,409.63

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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.