Home / 28,028.30-42,042.26-8,306.96

Finding the Fourth Proportional to 28,028.30, 42,042.26 and 8,306.96

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Solution

The fourth proportional to 28,028.30, 42,042.26 and 8,306.96 is: 12,460.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,028.30 : 42,042.26 = 8,306.96 : x
  2. Step 2: Convert to fraction form
    28,028.30/42,042.26 = 8,306.96/x
  3. Step 3: Cross multiply
    28,028.30x = 42,042.26 × 8,306.96
  4. Step 4: Simplify right side
    28,028.30x = 349,243,372.13
  5. Step 5: Solve for x
    x = 349,243,372.13/28,028.30
  6. Step 6: Final answer
    x = 12,460.38

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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.