Home / 43,281.60-64,922.40-16,972.80

Finding the Fourth Proportional to 43,281.60, 64,922.40 and 16,972.80

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Solution

The fourth proportional to 43,281.60, 64,922.40 and 16,972.80 is: 25,459.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,281.60 : 64,922.40 = 16,972.80 : x
  2. Step 2: Convert to fraction form
    43,281.60/64,922.40 = 16,972.80/x
  3. Step 3: Cross multiply
    43,281.60x = 64,922.40 × 16,972.80
  4. Step 4: Simplify right side
    43,281.60x = 1,101,914,910.72
  5. Step 5: Solve for x
    x = 1,101,914,910.72/43,281.60
  6. Step 6: Final answer
    x = 25,459.20

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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.