Home / 28,066.72-42,113.04-12,494.56

Finding the Fourth Proportional to 28,066.72, 42,113.04 and 12,494.56

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Solution

The fourth proportional to 28,066.72, 42,113.04 and 12,494.56 is: 18,747.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,066.72 : 42,113.04 = 12,494.56 : x
  2. Step 2: Convert to fraction form
    28,066.72/42,113.04 = 12,494.56/x
  3. Step 3: Cross multiply
    28,066.72x = 42,113.04 × 12,494.56
  4. Step 4: Simplify right side
    28,066.72x = 526,183,905.06
  5. Step 5: Solve for x
    x = 526,183,905.06/28,066.72
  6. Step 6: Final answer
    x = 18,747.61

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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.