Home / 27,829.60-38,455.71-20,262.73

Finding the Fourth Proportional to 27,829.60, 38,455.71 and 20,262.73

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Solution

The fourth proportional to 27,829.60, 38,455.71 and 20,262.73 is: 27,999.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,829.60 : 38,455.71 = 20,262.73 : x
  2. Step 2: Convert to fraction form
    27,829.60/38,455.71 = 20,262.73/x
  3. Step 3: Cross multiply
    27,829.60x = 38,455.71 × 20,262.73
  4. Step 4: Simplify right side
    27,829.60x = 779,217,790.80
  5. Step 5: Solve for x
    x = 779,217,790.80/27,829.60
  6. Step 6: Final answer
    x = 27,999.60

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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.