Home / 13,905.10-20,859.69-4,043.10

Finding the Fourth Proportional to 13,905.10, 20,859.69 and 4,043.10

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Solution

The fourth proportional to 13,905.10, 20,859.69 and 4,043.10 is: 6,065.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.10 : 20,859.69 = 4,043.10 : x
  2. Step 2: Convert to fraction form
    13,905.10/20,859.69 = 4,043.10/x
  3. Step 3: Cross multiply
    13,905.10x = 20,859.69 × 4,043.10
  4. Step 4: Simplify right side
    13,905.10x = 84,337,812.64
  5. Step 5: Solve for x
    x = 84,337,812.64/13,905.10
  6. Step 6: Final answer
    x = 6,065.24

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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.