Home / 28,324.12-42,487.62-10,790.68

Finding the Fourth Proportional to 28,324.12, 42,487.62 and 10,790.68

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Solution

The fourth proportional to 28,324.12, 42,487.62 and 10,790.68 is: 16,186.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,324.12 : 42,487.62 = 10,790.68 : x
  2. Step 2: Convert to fraction form
    28,324.12/42,487.62 = 10,790.68/x
  3. Step 3: Cross multiply
    28,324.12x = 42,487.62 × 10,790.68
  4. Step 4: Simplify right side
    28,324.12x = 458,470,311.38
  5. Step 5: Solve for x
    x = 458,470,311.38/28,324.12
  6. Step 6: Final answer
    x = 16,186.57

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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.