Home / 18,682.30-28,023.38-5,533.64

Finding the Fourth Proportional to 18,682.30, 28,023.38 and 5,533.64

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Solution

The fourth proportional to 18,682.30, 28,023.38 and 5,533.64 is: 8,300.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,682.30 : 28,023.38 = 5,533.64 : x
  2. Step 2: Convert to fraction form
    18,682.30/28,023.38 = 5,533.64/x
  3. Step 3: Cross multiply
    18,682.30x = 28,023.38 × 5,533.64
  4. Step 4: Simplify right side
    18,682.30x = 155,071,128.72
  5. Step 5: Solve for x
    x = 155,071,128.72/18,682.30
  6. Step 6: Final answer
    x = 8,300.43

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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.