Home / 28,433.24-42,651.70-8,725.54

Finding the Fourth Proportional to 28,433.24, 42,651.70 and 8,725.54

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Solution

The fourth proportional to 28,433.24, 42,651.70 and 8,725.54 is: 13,088.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,433.24 : 42,651.70 = 8,725.54 : x
  2. Step 2: Convert to fraction form
    28,433.24/42,651.70 = 8,725.54/x
  3. Step 3: Cross multiply
    28,433.24x = 42,651.70 × 8,725.54
  4. Step 4: Simplify right side
    28,433.24x = 372,159,114.42
  5. Step 5: Solve for x
    x = 372,159,114.42/28,433.24
  6. Step 6: Final answer
    x = 13,088.87

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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.