Home / 15,914.77-23,870.31-4,228.90

Finding the Fourth Proportional to 15,914.77, 23,870.31 and 4,228.90

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Solution

The fourth proportional to 15,914.77, 23,870.31 and 4,228.90 is: 6,342.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,914.77 : 23,870.31 = 4,228.90 : x
  2. Step 2: Convert to fraction form
    15,914.77/23,870.31 = 4,228.90/x
  3. Step 3: Cross multiply
    15,914.77x = 23,870.31 × 4,228.90
  4. Step 4: Simplify right side
    15,914.77x = 100,945,153.96
  5. Step 5: Solve for x
    x = 100,945,153.96/15,914.77
  6. Step 6: Final answer
    x = 6,342.86

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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.