Home / 14,260.32-21,390.72-3,871.80

Finding the Fourth Proportional to 14,260.32, 21,390.72 and 3,871.80

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Solution

The fourth proportional to 14,260.32, 21,390.72 and 3,871.80 is: 5,807.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,260.32 : 21,390.72 = 3,871.80 : x
  2. Step 2: Convert to fraction form
    14,260.32/21,390.72 = 3,871.80/x
  3. Step 3: Cross multiply
    14,260.32x = 21,390.72 × 3,871.80
  4. Step 4: Simplify right side
    14,260.32x = 82,820,589.70
  5. Step 5: Solve for x
    x = 82,820,589.70/14,260.32
  6. Step 6: Final answer
    x = 5,807.77

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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.