Home / 20,171.60-30,256.14-6,131.60

Finding the Fourth Proportional to 20,171.60, 30,256.14 and 6,131.60

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Solution

The fourth proportional to 20,171.60, 30,256.14 and 6,131.60 is: 9,197.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,171.60 : 30,256.14 = 6,131.60 : x
  2. Step 2: Convert to fraction form
    20,171.60/30,256.14 = 6,131.60/x
  3. Step 3: Cross multiply
    20,171.60x = 30,256.14 × 6,131.60
  4. Step 4: Simplify right side
    20,171.60x = 185,518,548.02
  5. Step 5: Solve for x
    x = 185,518,548.02/20,171.60
  6. Step 6: Final answer
    x = 9,197.02

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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.