Home / 46,490.20-69,727.96-20,187.88

Finding the Fourth Proportional to 46,490.20, 69,727.96 and 20,187.88

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Solution

The fourth proportional to 46,490.20, 69,727.96 and 20,187.88 is: 30,278.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,490.20 : 69,727.96 = 20,187.88 : x
  2. Step 2: Convert to fraction form
    46,490.20/69,727.96 = 20,187.88/x
  3. Step 3: Cross multiply
    46,490.20x = 69,727.96 × 20,187.88
  4. Step 4: Simplify right side
    46,490.20x = 1,407,659,689.12
  5. Step 5: Solve for x
    x = 1,407,659,689.12/46,490.20
  6. Step 6: Final answer
    x = 30,278.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.