Home / 38,998.95-53,818.37-21,093.91

Finding the Fourth Proportional to 38,998.95, 53,818.37 and 21,093.91

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Solution

The fourth proportional to 38,998.95, 53,818.37 and 21,093.91 is: 29,109.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,998.95 : 53,818.37 = 21,093.91 : x
  2. Step 2: Convert to fraction form
    38,998.95/53,818.37 = 21,093.91/x
  3. Step 3: Cross multiply
    38,998.95x = 53,818.37 × 21,093.91
  4. Step 4: Simplify right side
    38,998.95x = 1,135,239,771.32
  5. Step 5: Solve for x
    x = 1,135,239,771.32/38,998.95
  6. Step 6: Final answer
    x = 29,109.50

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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.