Home / 40,839.96-61,231.14-15,859.20

Finding the Fourth Proportional to 40,839.96, 61,231.14 and 15,859.20

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Solution

The fourth proportional to 40,839.96, 61,231.14 and 15,859.20 is: 23,777.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,839.96 : 61,231.14 = 15,859.20 : x
  2. Step 2: Convert to fraction form
    40,839.96/61,231.14 = 15,859.20/x
  3. Step 3: Cross multiply
    40,839.96x = 61,231.14 × 15,859.20
  4. Step 4: Simplify right side
    40,839.96x = 971,076,895.49
  5. Step 5: Solve for x
    x = 971,076,895.49/40,839.96
  6. Step 6: Final answer
    x = 23,777.62

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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.