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Finding the Fourth Proportional to 32,128.40, 48,214.40 and 11,351.90

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Solution

The fourth proportional to 32,128.40, 48,214.40 and 11,351.90 is: 17,035.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,128.40 : 48,214.40 = 11,351.90 : x
  2. Step 2: Convert to fraction form
    32,128.40/48,214.40 = 11,351.90/x
  3. Step 3: Cross multiply
    32,128.40x = 48,214.40 × 11,351.90
  4. Step 4: Simplify right side
    32,128.40x = 547,324,749.53
  5. Step 5: Solve for x
    x = 547,324,749.53/32,128.40
  6. Step 6: Final answer
    x = 17,035.55

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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.