Home / 27,750.40-38,293.60-15,174.88

Finding the Fourth Proportional to 27,750.40, 38,293.60 and 15,174.88

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Solution

The fourth proportional to 27,750.40, 38,293.60 and 15,174.88 is: 20,940.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,750.40 : 38,293.60 = 15,174.88 : x
  2. Step 2: Convert to fraction form
    27,750.40/38,293.60 = 15,174.88/x
  3. Step 3: Cross multiply
    27,750.40x = 38,293.60 × 15,174.88
  4. Step 4: Simplify right side
    27,750.40x = 581,100,784.77
  5. Step 5: Solve for x
    x = 581,100,784.77/27,750.40
  6. Step 6: Final answer
    x = 20,940.27

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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.