Home / 27,628.44-38,125.86-15,690.12

Finding the Fourth Proportional to 27,628.44, 38,125.86 and 15,690.12

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Solution

The fourth proportional to 27,628.44, 38,125.86 and 15,690.12 is: 21,651.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,628.44 : 38,125.86 = 15,690.12 : x
  2. Step 2: Convert to fraction form
    27,628.44/38,125.86 = 15,690.12/x
  3. Step 3: Cross multiply
    27,628.44x = 38,125.86 × 15,690.12
  4. Step 4: Simplify right side
    27,628.44x = 598,199,318.50
  5. Step 5: Solve for x
    x = 598,199,318.50/27,628.44
  6. Step 6: Final answer
    x = 21,651.58

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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.