Home / 20,416.56-28,174.10-11,464.44

Finding the Fourth Proportional to 20,416.56, 28,174.10 and 11,464.44

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Solution

The fourth proportional to 20,416.56, 28,174.10 and 11,464.44 is: 15,820.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,416.56 : 28,174.10 = 11,464.44 : x
  2. Step 2: Convert to fraction form
    20,416.56/28,174.10 = 11,464.44/x
  3. Step 3: Cross multiply
    20,416.56x = 28,174.10 × 11,464.44
  4. Step 4: Simplify right side
    20,416.56x = 323,000,279.00
  5. Step 5: Solve for x
    x = 323,000,279.00/20,416.56
  6. Step 6: Final answer
    x = 15,820.50

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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.