Home / 18,421.02-27,659.67-17,662.86

Finding the Fourth Proportional to 18,421.02, 27,659.67 and 17,662.86

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Solution

The fourth proportional to 18,421.02, 27,659.67 and 17,662.86 is: 26,521.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,421.02 : 27,659.67 = 17,662.86 : x
  2. Step 2: Convert to fraction form
    18,421.02/27,659.67 = 17,662.86/x
  3. Step 3: Cross multiply
    18,421.02x = 27,659.67 × 17,662.86
  4. Step 4: Simplify right side
    18,421.02x = 488,548,878.86
  5. Step 5: Solve for x
    x = 488,548,878.86/18,421.02
  6. Step 6: Final answer
    x = 26,521.27

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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.