Home / 43,112.40-64,640.64-16,819.80

Finding the Fourth Proportional to 43,112.40, 64,640.64 and 16,819.80

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Solution

The fourth proportional to 43,112.40, 64,640.64 and 16,819.80 is: 25,218.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,112.40 : 64,640.64 = 16,819.80 : x
  2. Step 2: Convert to fraction form
    43,112.40/64,640.64 = 16,819.80/x
  3. Step 3: Cross multiply
    43,112.40x = 64,640.64 × 16,819.80
  4. Step 4: Simplify right side
    43,112.40x = 1,087,242,636.67
  5. Step 5: Solve for x
    x = 1,087,242,636.67/43,112.40
  6. Step 6: Final answer
    x = 25,218.79

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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.