Home / 37,383.90-51,589.84-20,388.18

Finding the Fourth Proportional to 37,383.90, 51,589.84 and 20,388.18

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Solution

The fourth proportional to 37,383.90, 51,589.84 and 20,388.18 is: 28,135.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,383.90 : 51,589.84 = 20,388.18 : x
  2. Step 2: Convert to fraction form
    37,383.90/51,589.84 = 20,388.18/x
  3. Step 3: Cross multiply
    37,383.90x = 51,589.84 × 20,388.18
  4. Step 4: Simplify right side
    37,383.90x = 1,051,822,944.09
  5. Step 5: Solve for x
    x = 1,051,822,944.09/37,383.90
  6. Step 6: Final answer
    x = 28,135.72

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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.