Home / 28,515.57-42,743.67-10,734.02

Finding the Fourth Proportional to 28,515.57, 42,743.67 and 10,734.02

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Solution

The fourth proportional to 28,515.57, 42,743.67 and 10,734.02 is: 16,089.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,515.57 : 42,743.67 = 10,734.02 : x
  2. Step 2: Convert to fraction form
    28,515.57/42,743.67 = 10,734.02/x
  3. Step 3: Cross multiply
    28,515.57x = 42,743.67 × 10,734.02
  4. Step 4: Simplify right side
    28,515.57x = 458,811,408.65
  5. Step 5: Solve for x
    x = 458,811,408.65/28,515.57
  6. Step 6: Final answer
    x = 16,089.86

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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.