Home / 40,518.63-60,780.27-10,938.85

Finding the Fourth Proportional to 40,518.63, 60,780.27 and 10,938.85

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Solution

The fourth proportional to 40,518.63, 60,780.27 and 10,938.85 is: 16,408.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,518.63 : 60,780.27 = 10,938.85 : x
  2. Step 2: Convert to fraction form
    40,518.63/60,780.27 = 10,938.85/x
  3. Step 3: Cross multiply
    40,518.63x = 60,780.27 × 10,938.85
  4. Step 4: Simplify right side
    40,518.63x = 664,866,145.56
  5. Step 5: Solve for x
    x = 664,866,145.56/40,518.63
  6. Step 6: Final answer
    x = 16,408.90

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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.