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Finding the Fourth Proportional to 41,878.40, 62,817.60 and 18,492.80

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Solution

The fourth proportional to 41,878.40, 62,817.60 and 18,492.80 is: 27,739.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,878.40 : 62,817.60 = 18,492.80 : x
  2. Step 2: Convert to fraction form
    41,878.40/62,817.60 = 18,492.80/x
  3. Step 3: Cross multiply
    41,878.40x = 62,817.60 × 18,492.80
  4. Step 4: Simplify right side
    41,878.40x = 1,161,673,313.28
  5. Step 5: Solve for x
    x = 1,161,673,313.28/41,878.40
  6. Step 6: Final answer
    x = 27,739.20

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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.