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Finding the Fourth Proportional to 48,408.49, 72,617.22 and 18,828.57

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Solution

The fourth proportional to 48,408.49, 72,617.22 and 18,828.57 is: 28,244.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,408.49 : 72,617.22 = 18,828.57 : x
  2. Step 2: Convert to fraction form
    48,408.49/72,617.22 = 18,828.57/x
  3. Step 3: Cross multiply
    48,408.49x = 72,617.22 × 18,828.57
  4. Step 4: Simplify right side
    48,408.49x = 1,367,278,409.98
  5. Step 5: Solve for x
    x = 1,367,278,409.98/48,408.49
  6. Step 6: Final answer
    x = 28,244.60

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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.