Home / 27,455.94-37,888.80-15,518.88

Finding the Fourth Proportional to 27,455.94, 37,888.80 and 15,518.88

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Solution

The fourth proportional to 27,455.94, 37,888.80 and 15,518.88 is: 21,415.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,455.94 : 37,888.80 = 15,518.88 : x
  2. Step 2: Convert to fraction form
    27,455.94/37,888.80 = 15,518.88/x
  3. Step 3: Cross multiply
    27,455.94x = 37,888.80 × 15,518.88
  4. Step 4: Simplify right side
    27,455.94x = 587,991,740.54
  5. Step 5: Solve for x
    x = 587,991,740.54/27,455.94
  6. Step 6: Final answer
    x = 21,415.83

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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.