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Finding the Fourth Proportional to 55,241.46, 82,862.15 and 13,688.46

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Solution

The fourth proportional to 55,241.46, 82,862.15 and 13,688.46 is: 20,532.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,241.46 : 82,862.15 = 13,688.46 : x
  2. Step 2: Convert to fraction form
    55,241.46/82,862.15 = 13,688.46/x
  3. Step 3: Cross multiply
    55,241.46x = 82,862.15 × 13,688.46
  4. Step 4: Simplify right side
    55,241.46x = 1,134,255,157.35
  5. Step 5: Solve for x
    x = 1,134,255,157.35/55,241.46
  6. Step 6: Final answer
    x = 20,532.68

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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.