Home / 28,707.15-43,069.83-9,986.43

Finding the Fourth Proportional to 28,707.15, 43,069.83 and 9,986.43

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Solution

The fourth proportional to 28,707.15, 43,069.83 and 9,986.43 is: 14,982.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,707.15 : 43,069.83 = 9,986.43 : x
  2. Step 2: Convert to fraction form
    28,707.15/43,069.83 = 9,986.43/x
  3. Step 3: Cross multiply
    28,707.15x = 43,069.83 × 9,986.43
  4. Step 4: Simplify right side
    28,707.15x = 430,113,842.41
  5. Step 5: Solve for x
    x = 430,113,842.41/28,707.15
  6. Step 6: Final answer
    x = 14,982.81

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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.