Home / 28,999.62-39,997.27-19,436.51

Finding the Fourth Proportional to 28,999.62, 39,997.27 and 19,436.51

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Solution

The fourth proportional to 28,999.62, 39,997.27 and 19,436.51 is: 26,807.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,999.62 : 39,997.27 = 19,436.51 : x
  2. Step 2: Convert to fraction form
    28,999.62/39,997.27 = 19,436.51/x
  3. Step 3: Cross multiply
    28,999.62x = 39,997.27 × 19,436.51
  4. Step 4: Simplify right side
    28,999.62x = 777,407,182.97
  5. Step 5: Solve for x
    x = 777,407,182.97/28,999.62
  6. Step 6: Final answer
    x = 26,807.50

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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.