Home / 28,270.17-39,010.55-15,694.65

Finding the Fourth Proportional to 28,270.17, 39,010.55 and 15,694.65

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Solution

The fourth proportional to 28,270.17, 39,010.55 and 15,694.65 is: 21,657.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,270.17 : 39,010.55 = 15,694.65 : x
  2. Step 2: Convert to fraction form
    28,270.17/39,010.55 = 15,694.65/x
  3. Step 3: Cross multiply
    28,270.17x = 39,010.55 × 15,694.65
  4. Step 4: Simplify right side
    28,270.17x = 612,256,850.08
  5. Step 5: Solve for x
    x = 612,256,850.08/28,270.17
  6. Step 6: Final answer
    x = 21,657.35

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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.