Home / 20,376.24-30,574.73-9,855.25

Finding the Fourth Proportional to 20,376.24, 30,574.73 and 9,855.25

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Solution

The fourth proportional to 20,376.24, 30,574.73 and 9,855.25 is: 14,787.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,376.24 : 30,574.73 = 9,855.25 : x
  2. Step 2: Convert to fraction form
    20,376.24/30,574.73 = 9,855.25/x
  3. Step 3: Cross multiply
    20,376.24x = 30,574.73 × 9,855.25
  4. Step 4: Simplify right side
    20,376.24x = 301,321,607.83
  5. Step 5: Solve for x
    x = 301,321,607.83/20,376.24
  6. Step 6: Final answer
    x = 14,787.89

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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.