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Finding the Fourth Proportional to 45,483.68, 68,236.68 and 13,894.28

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Solution

The fourth proportional to 45,483.68, 68,236.68 and 13,894.28 is: 20,844.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,483.68 : 68,236.68 = 13,894.28 : x
  2. Step 2: Convert to fraction form
    45,483.68/68,236.68 = 13,894.28/x
  3. Step 3: Cross multiply
    45,483.68x = 68,236.68 × 13,894.28
  4. Step 4: Simplify right side
    45,483.68x = 948,099,810.67
  5. Step 5: Solve for x
    x = 948,099,810.67/45,483.68
  6. Step 6: Final answer
    x = 20,844.84

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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.