Home / 40,910.06-61,365.20-13,208.06

Finding the Fourth Proportional to 40,910.06, 61,365.20 and 13,208.06

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Solution

The fourth proportional to 40,910.06, 61,365.20 and 13,208.06 is: 19,812.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,910.06 : 61,365.20 = 13,208.06 : x
  2. Step 2: Convert to fraction form
    40,910.06/61,365.20 = 13,208.06/x
  3. Step 3: Cross multiply
    40,910.06x = 61,365.20 × 13,208.06
  4. Step 4: Simplify right side
    40,910.06x = 810,515,330.88
  5. Step 5: Solve for x
    x = 810,515,330.88/40,910.06
  6. Step 6: Final answer
    x = 19,812.13

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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.