Home / 40,272.20-60,422.70-16,905.80

Finding the Fourth Proportional to 40,272.20, 60,422.70 and 16,905.80

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Solution

The fourth proportional to 40,272.20, 60,422.70 and 16,905.80 is: 25,364.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,272.20 : 60,422.70 = 16,905.80 : x
  2. Step 2: Convert to fraction form
    40,272.20/60,422.70 = 16,905.80/x
  3. Step 3: Cross multiply
    40,272.20x = 60,422.70 × 16,905.80
  4. Step 4: Simplify right side
    40,272.20x = 1,021,494,081.66
  5. Step 5: Solve for x
    x = 1,021,494,081.66/40,272.20
  6. Step 6: Final answer
    x = 25,364.74

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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.