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Finding the Fourth Proportional to 28,408.56, 42,613.44 and 7,349.05

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Solution

The fourth proportional to 28,408.56, 42,613.44 and 7,349.05 is: 11,023.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,408.56 : 42,613.44 = 7,349.05 : x
  2. Step 2: Convert to fraction form
    28,408.56/42,613.44 = 7,349.05/x
  3. Step 3: Cross multiply
    28,408.56x = 42,613.44 × 7,349.05
  4. Step 4: Simplify right side
    28,408.56x = 313,168,301.23
  5. Step 5: Solve for x
    x = 313,168,301.23/28,408.56
  6. Step 6: Final answer
    x = 11,023.73

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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.