Home / 28,908.10-43,374.30-15,769.90

Finding the Fourth Proportional to 28,908.10, 43,374.30 and 15,769.90

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Solution

The fourth proportional to 28,908.10, 43,374.30 and 15,769.90 is: 23,661.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,908.10 : 43,374.30 = 15,769.90 : x
  2. Step 2: Convert to fraction form
    28,908.10/43,374.30 = 15,769.90/x
  3. Step 3: Cross multiply
    28,908.10x = 43,374.30 × 15,769.90
  4. Step 4: Simplify right side
    28,908.10x = 684,008,373.57
  5. Step 5: Solve for x
    x = 684,008,373.57/28,908.10
  6. Step 6: Final answer
    x = 23,661.48

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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.