Home / 36,720.18-50,672.31-20,805.51

Finding the Fourth Proportional to 36,720.18, 50,672.31 and 20,805.51

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Solution

The fourth proportional to 36,720.18, 50,672.31 and 20,805.51 is: 28,710.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,720.18 : 50,672.31 = 20,805.51 : x
  2. Step 2: Convert to fraction form
    36,720.18/50,672.31 = 20,805.51/x
  3. Step 3: Cross multiply
    36,720.18x = 50,672.31 × 20,805.51
  4. Step 4: Simplify right side
    36,720.18x = 1,054,263,252.43
  5. Step 5: Solve for x
    x = 1,054,263,252.43/36,720.18
  6. Step 6: Final answer
    x = 28,710.73

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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.