Home / 28,302.75-42,460.26-8,582.79

Finding the Fourth Proportional to 28,302.75, 42,460.26 and 8,582.79

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Solution

The fourth proportional to 28,302.75, 42,460.26 and 8,582.79 is: 12,876.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,302.75 : 42,460.26 = 8,582.79 : x
  2. Step 2: Convert to fraction form
    28,302.75/42,460.26 = 8,582.79/x
  3. Step 3: Cross multiply
    28,302.75x = 42,460.26 × 8,582.79
  4. Step 4: Simplify right side
    28,302.75x = 364,427,494.93
  5. Step 5: Solve for x
    x = 364,427,494.93/28,302.75
  6. Step 6: Final answer
    x = 12,876.05

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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.