Home / 40,389.67-60,609.77-15,431.85

Finding the Fourth Proportional to 40,389.67, 60,609.77 and 15,431.85

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Solution

The fourth proportional to 40,389.67, 60,609.77 and 15,431.85 is: 23,157.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,389.67 : 60,609.77 = 15,431.85 : x
  2. Step 2: Convert to fraction form
    40,389.67/60,609.77 = 15,431.85/x
  3. Step 3: Cross multiply
    40,389.67x = 60,609.77 × 15,431.85
  4. Step 4: Simplify right side
    40,389.67x = 935,320,859.88
  5. Step 5: Solve for x
    x = 935,320,859.88/40,389.67
  6. Step 6: Final answer
    x = 23,157.43

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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.