Home / 38,485.01-57,729.14-12,189.17

Finding the Fourth Proportional to 38,485.01, 57,729.14 and 12,189.17

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Solution

The fourth proportional to 38,485.01, 57,729.14 and 12,189.17 is: 18,284.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,485.01 : 57,729.14 = 12,189.17 : x
  2. Step 2: Convert to fraction form
    38,485.01/57,729.14 = 12,189.17/x
  3. Step 3: Cross multiply
    38,485.01x = 57,729.14 × 12,189.17
  4. Step 4: Simplify right side
    38,485.01x = 703,670,301.41
  5. Step 5: Solve for x
    x = 703,670,301.41/38,485.01
  6. Step 6: Final answer
    x = 18,284.27

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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.