Home / 20,571.54-30,858.75-10,180.50

Finding the Fourth Proportional to 20,571.54, 30,858.75 and 10,180.50

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Solution

The fourth proportional to 20,571.54, 30,858.75 and 10,180.50 is: 15,271.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,571.54 : 30,858.75 = 10,180.50 : x
  2. Step 2: Convert to fraction form
    20,571.54/30,858.75 = 10,180.50/x
  3. Step 3: Cross multiply
    20,571.54x = 30,858.75 × 10,180.50
  4. Step 4: Simplify right side
    20,571.54x = 314,157,504.38
  5. Step 5: Solve for x
    x = 314,157,504.38/20,571.54
  6. Step 6: Final answer
    x = 15,271.46

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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.