Home / 27,687.00-38,194.75-18,122.67

Finding the Fourth Proportional to 27,687.00, 38,194.75 and 18,122.67

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Solution

The fourth proportional to 27,687.00, 38,194.75 and 18,122.67 is: 25,000.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,687.00 : 38,194.75 = 18,122.67 : x
  2. Step 2: Convert to fraction form
    27,687.00/38,194.75 = 18,122.67/x
  3. Step 3: Cross multiply
    27,687.00x = 38,194.75 × 18,122.67
  4. Step 4: Simplify right side
    27,687.00x = 692,191,059.25
  5. Step 5: Solve for x
    x = 692,191,059.25/27,687.00
  6. Step 6: Final answer
    x = 25,000.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.