Home / 19,772.81-29,659.59-9,239.94

Finding the Fourth Proportional to 19,772.81, 29,659.59 and 9,239.94

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Solution

The fourth proportional to 19,772.81, 29,659.59 and 9,239.94 is: 13,860.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,772.81 : 29,659.59 = 9,239.94 : x
  2. Step 2: Convert to fraction form
    19,772.81/29,659.59 = 9,239.94/x
  3. Step 3: Cross multiply
    19,772.81x = 29,659.59 × 9,239.94
  4. Step 4: Simplify right side
    19,772.81x = 274,052,943.25
  5. Step 5: Solve for x
    x = 274,052,943.25/19,772.81
  6. Step 6: Final answer
    x = 13,860.09

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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.