Home / 28,273.56-39,018.60-15,700.68

Finding the Fourth Proportional to 28,273.56, 39,018.60 and 15,700.68

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Solution

The fourth proportional to 28,273.56, 39,018.60 and 15,700.68 is: 21,667.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,273.56 : 39,018.60 = 15,700.68 : x
  2. Step 2: Convert to fraction form
    28,273.56/39,018.60 = 15,700.68/x
  3. Step 3: Cross multiply
    28,273.56x = 39,018.60 × 15,700.68
  4. Step 4: Simplify right side
    28,273.56x = 612,618,552.65
  5. Step 5: Solve for x
    x = 612,618,552.65/28,273.56
  6. Step 6: Final answer
    x = 21,667.54

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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.