Home / 19,890.36-29,839.32-6,744.60

Finding the Fourth Proportional to 19,890.36, 29,839.32 and 6,744.60

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Solution

The fourth proportional to 19,890.36, 29,839.32 and 6,744.60 is: 10,118.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,890.36 : 29,839.32 = 6,744.60 : x
  2. Step 2: Convert to fraction form
    19,890.36/29,839.32 = 6,744.60/x
  3. Step 3: Cross multiply
    19,890.36x = 29,839.32 × 6,744.60
  4. Step 4: Simplify right side
    19,890.36x = 201,254,277.67
  5. Step 5: Solve for x
    x = 201,254,277.67/19,890.36
  6. Step 6: Final answer
    x = 10,118.18

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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.