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Finding the Fourth Proportional to 44,885.60, 67,331.60 and 13,720.80

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Solution

The fourth proportional to 44,885.60, 67,331.60 and 13,720.80 is: 20,582.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,885.60 : 67,331.60 = 13,720.80 : x
  2. Step 2: Convert to fraction form
    44,885.60/67,331.60 = 13,720.80/x
  3. Step 3: Cross multiply
    44,885.60x = 67,331.60 × 13,720.80
  4. Step 4: Simplify right side
    44,885.60x = 923,843,417.28
  5. Step 5: Solve for x
    x = 923,843,417.28/44,885.60
  6. Step 6: Final answer
    x = 20,582.18

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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.