Home / 18,771.22-28,189.04-16,667.60

Finding the Fourth Proportional to 18,771.22, 28,189.04 and 16,667.60

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Solution

The fourth proportional to 18,771.22, 28,189.04 and 16,667.60 is: 25,030.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,771.22 : 28,189.04 = 16,667.60 : x
  2. Step 2: Convert to fraction form
    18,771.22/28,189.04 = 16,667.60/x
  3. Step 3: Cross multiply
    18,771.22x = 28,189.04 × 16,667.60
  4. Step 4: Simplify right side
    18,771.22x = 469,843,643.10
  5. Step 5: Solve for x
    x = 469,843,643.10/18,771.22
  6. Step 6: Final answer
    x = 25,030.00

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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.