Home / 40,221.69-60,340.40-12,144.03

Finding the Fourth Proportional to 40,221.69, 60,340.40 and 12,144.03

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Solution

The fourth proportional to 40,221.69, 60,340.40 and 12,144.03 is: 18,218.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,221.69 : 60,340.40 = 12,144.03 : x
  2. Step 2: Convert to fraction form
    40,221.69/60,340.40 = 12,144.03/x
  3. Step 3: Cross multiply
    40,221.69x = 60,340.40 × 12,144.03
  4. Step 4: Simplify right side
    40,221.69x = 732,775,567.09
  5. Step 5: Solve for x
    x = 732,775,567.09/40,221.69
  6. Step 6: Final answer
    x = 18,218.42

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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.