Home / 28,519.92-39,316.32-19,553.22

Finding the Fourth Proportional to 28,519.92, 39,316.32 and 19,553.22

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Solution

The fourth proportional to 28,519.92, 39,316.32 and 19,553.22 is: 26,955.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,519.92 : 39,316.32 = 19,553.22 : x
  2. Step 2: Convert to fraction form
    28,519.92/39,316.32 = 19,553.22/x
  3. Step 3: Cross multiply
    28,519.92x = 39,316.32 × 19,553.22
  4. Step 4: Simplify right side
    28,519.92x = 768,760,654.55
  5. Step 5: Solve for x
    x = 768,760,654.55/28,519.92
  6. Step 6: Final answer
    x = 26,955.22

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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.