Home / 40,208.88-60,323.34-12,128.24

Finding the Fourth Proportional to 40,208.88, 60,323.34 and 12,128.24

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Solution

The fourth proportional to 40,208.88, 60,323.34 and 12,128.24 is: 18,195.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,208.88 : 60,323.34 = 12,128.24 : x
  2. Step 2: Convert to fraction form
    40,208.88/60,323.34 = 12,128.24/x
  3. Step 3: Cross multiply
    40,208.88x = 60,323.34 × 12,128.24
  4. Step 4: Simplify right side
    40,208.88x = 731,615,945.12
  5. Step 5: Solve for x
    x = 731,615,945.12/40,208.88
  6. Step 6: Final answer
    x = 18,195.38

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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.