Home / 18,030.40-27,027.24-12,187.60

Finding the Fourth Proportional to 18,030.40, 27,027.24 and 12,187.60

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Solution

The fourth proportional to 18,030.40, 27,027.24 and 12,187.60 is: 18,268.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,030.40 : 27,027.24 = 12,187.60 : x
  2. Step 2: Convert to fraction form
    18,030.40/27,027.24 = 12,187.60/x
  3. Step 3: Cross multiply
    18,030.40x = 27,027.24 × 12,187.60
  4. Step 4: Simplify right side
    18,030.40x = 329,397,190.22
  5. Step 5: Solve for x
    x = 329,397,190.22/18,030.40
  6. Step 6: Final answer
    x = 18,268.99

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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.