Home / 28,185.96-38,896.52-15,610.70

Finding the Fourth Proportional to 28,185.96, 38,896.52 and 15,610.70

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Solution

The fourth proportional to 28,185.96, 38,896.52 and 15,610.70 is: 21,542.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,185.96 : 38,896.52 = 15,610.70 : x
  2. Step 2: Convert to fraction form
    28,185.96/38,896.52 = 15,610.70/x
  3. Step 3: Cross multiply
    28,185.96x = 38,896.52 × 15,610.70
  4. Step 4: Simplify right side
    28,185.96x = 607,201,904.76
  5. Step 5: Solve for x
    x = 607,201,904.76/28,185.96
  6. Step 6: Final answer
    x = 21,542.71

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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.