Home / 38,998.77-53,818.32-21,093.77

Finding the Fourth Proportional to 38,998.77, 53,818.32 and 21,093.77

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Solution

The fourth proportional to 38,998.77, 53,818.32 and 21,093.77 is: 29,109.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,998.77 : 53,818.32 = 21,093.77 : x
  2. Step 2: Convert to fraction form
    38,998.77/53,818.32 = 21,093.77/x
  3. Step 3: Cross multiply
    38,998.77x = 53,818.32 × 21,093.77
  4. Step 4: Simplify right side
    38,998.77x = 1,135,231,263.87
  5. Step 5: Solve for x
    x = 1,135,231,263.87/38,998.77
  6. Step 6: Final answer
    x = 29,109.41

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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.