Home / 40,503.20-60,736.80-18,315.68

Finding the Fourth Proportional to 40,503.20, 60,736.80 and 18,315.68

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Solution

The fourth proportional to 40,503.20, 60,736.80 and 18,315.68 is: 27,465.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,503.20 : 60,736.80 = 18,315.68 : x
  2. Step 2: Convert to fraction form
    40,503.20/60,736.80 = 18,315.68/x
  3. Step 3: Cross multiply
    40,503.20x = 60,736.80 × 18,315.68
  4. Step 4: Simplify right side
    40,503.20x = 1,112,435,793.02
  5. Step 5: Solve for x
    x = 1,112,435,793.02/40,503.20
  6. Step 6: Final answer
    x = 27,465.38

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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.