Home / 15,676.13-23,515.41-3,989.25

Finding the Fourth Proportional to 15,676.13, 23,515.41 and 3,989.25

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Solution

The fourth proportional to 15,676.13, 23,515.41 and 3,989.25 is: 5,984.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,676.13 : 23,515.41 = 3,989.25 : x
  2. Step 2: Convert to fraction form
    15,676.13/23,515.41 = 3,989.25/x
  3. Step 3: Cross multiply
    15,676.13x = 23,515.41 × 3,989.25
  4. Step 4: Simplify right side
    15,676.13x = 93,808,864.30
  5. Step 5: Solve for x
    x = 93,808,864.30/15,676.13
  6. Step 6: Final answer
    x = 5,984.18

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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.