Home / 20,327.88-30,483.18-12,534.60

Finding the Fourth Proportional to 20,327.88, 30,483.18 and 12,534.60

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Solution

The fourth proportional to 20,327.88, 30,483.18 and 12,534.60 is: 18,796.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,327.88 : 30,483.18 = 12,534.60 : x
  2. Step 2: Convert to fraction form
    20,327.88/30,483.18 = 12,534.60/x
  3. Step 3: Cross multiply
    20,327.88x = 30,483.18 × 12,534.60
  4. Step 4: Simplify right side
    20,327.88x = 382,094,468.03
  5. Step 5: Solve for x
    x = 382,094,468.03/20,327.88
  6. Step 6: Final answer
    x = 18,796.57

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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.