Home / 43,845.60-65,744.10-18,881.40

Finding the Fourth Proportional to 43,845.60, 65,744.10 and 18,881.40

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Solution

The fourth proportional to 43,845.60, 65,744.10 and 18,881.40 is: 28,311.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,845.60 : 65,744.10 = 18,881.40 : x
  2. Step 2: Convert to fraction form
    43,845.60/65,744.10 = 18,881.40/x
  3. Step 3: Cross multiply
    43,845.60x = 65,744.10 × 18,881.40
  4. Step 4: Simplify right side
    43,845.60x = 1,241,340,649.74
  5. Step 5: Solve for x
    x = 1,241,340,649.74/43,845.60
  6. Step 6: Final answer
    x = 28,311.64

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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.