Home / 20,188.18-30,301.80-14,571.64

Finding the Fourth Proportional to 20,188.18, 30,301.80 and 14,571.64

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Solution

The fourth proportional to 20,188.18, 30,301.80 and 14,571.64 is: 21,871.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,188.18 : 30,301.80 = 14,571.64 : x
  2. Step 2: Convert to fraction form
    20,188.18/30,301.80 = 14,571.64/x
  3. Step 3: Cross multiply
    20,188.18x = 30,301.80 × 14,571.64
  4. Step 4: Simplify right side
    20,188.18x = 441,546,920.95
  5. Step 5: Solve for x
    x = 441,546,920.95/20,188.18
  6. Step 6: Final answer
    x = 21,871.56

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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.