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Finding the Fourth Proportional to 28,831.80, 43,241.16 and 13,234.44

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Solution

The fourth proportional to 28,831.80, 43,241.16 and 13,234.44 is: 19,848.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,831.80 : 43,241.16 = 13,234.44 : x
  2. Step 2: Convert to fraction form
    28,831.80/43,241.16 = 13,234.44/x
  3. Step 3: Cross multiply
    28,831.80x = 43,241.16 × 13,234.44
  4. Step 4: Simplify right side
    28,831.80x = 572,272,537.55
  5. Step 5: Solve for x
    x = 572,272,537.55/28,831.80
  6. Step 6: Final answer
    x = 19,848.66

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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.