Home / 28,516.87-42,775.74-8,795.39

Finding the Fourth Proportional to 28,516.87, 42,775.74 and 8,795.39

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Solution

The fourth proportional to 28,516.87, 42,775.74 and 8,795.39 is: 13,193.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,516.87 : 42,775.74 = 8,795.39 : x
  2. Step 2: Convert to fraction form
    28,516.87/42,775.74 = 8,795.39/x
  3. Step 3: Cross multiply
    28,516.87x = 42,775.74 × 8,795.39
  4. Step 4: Simplify right side
    28,516.87x = 376,229,422.78
  5. Step 5: Solve for x
    x = 376,229,422.78/28,516.87
  6. Step 6: Final answer
    x = 13,193.22

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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.