Home / 27,455.52-37,890.56-15,519.96

Finding the Fourth Proportional to 27,455.52, 37,890.56 and 15,519.96

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Solution

The fourth proportional to 27,455.52, 37,890.56 and 15,519.96 is: 21,418.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,455.52 : 37,890.56 = 15,519.96 : x
  2. Step 2: Convert to fraction form
    27,455.52/37,890.56 = 15,519.96/x
  3. Step 3: Cross multiply
    27,455.52x = 37,890.56 × 15,519.96
  4. Step 4: Simplify right side
    27,455.52x = 588,059,975.58
  5. Step 5: Solve for x
    x = 588,059,975.58/27,455.52
  6. Step 6: Final answer
    x = 21,418.64

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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.