Home / 18,021.56-24,847.26-13,777.88

Finding the Fourth Proportional to 18,021.56, 24,847.26 and 13,777.88

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Solution

The fourth proportional to 18,021.56, 24,847.26 and 13,777.88 is: 18,996.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,021.56 : 24,847.26 = 13,777.88 : x
  2. Step 2: Convert to fraction form
    18,021.56/24,847.26 = 13,777.88/x
  3. Step 3: Cross multiply
    18,021.56x = 24,847.26 × 13,777.88
  4. Step 4: Simplify right side
    18,021.56x = 342,342,566.61
  5. Step 5: Solve for x
    x = 342,342,566.61/18,021.56
  6. Step 6: Final answer
    x = 18,996.28

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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.