Home / 28,976.13-43,464.20-18,653.49

Finding the Fourth Proportional to 28,976.13, 43,464.20 and 18,653.49

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Solution

The fourth proportional to 28,976.13, 43,464.20 and 18,653.49 is: 27,980.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,976.13 : 43,464.20 = 18,653.49 : x
  2. Step 2: Convert to fraction form
    28,976.13/43,464.20 = 18,653.49/x
  3. Step 3: Cross multiply
    28,976.13x = 43,464.20 × 18,653.49
  4. Step 4: Simplify right side
    28,976.13x = 810,758,926.79
  5. Step 5: Solve for x
    x = 810,758,926.79/28,976.13
  6. Step 6: Final answer
    x = 27,980.24

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1.5x scale

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.