Home / 40,405.40-60,608.10-18,243.80

Finding the Fourth Proportional to 40,405.40, 60,608.10 and 18,243.80

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Solution

The fourth proportional to 40,405.40, 60,608.10 and 18,243.80 is: 27,365.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,405.40 : 60,608.10 = 18,243.80 : x
  2. Step 2: Convert to fraction form
    40,405.40/60,608.10 = 18,243.80/x
  3. Step 3: Cross multiply
    40,405.40x = 60,608.10 × 18,243.80
  4. Step 4: Simplify right side
    40,405.40x = 1,105,722,054.78
  5. Step 5: Solve for x
    x = 1,105,722,054.78/40,405.40
  6. Step 6: Final answer
    x = 27,365.70

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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.