Home / 19,976.08-29,969.64-8,732.40

Finding the Fourth Proportional to 19,976.08, 29,969.64 and 8,732.40

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Solution

The fourth proportional to 19,976.08, 29,969.64 and 8,732.40 is: 13,101.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,976.08 : 29,969.64 = 8,732.40 : x
  2. Step 2: Convert to fraction form
    19,976.08/29,969.64 = 8,732.40/x
  3. Step 3: Cross multiply
    19,976.08x = 29,969.64 × 8,732.40
  4. Step 4: Simplify right side
    19,976.08x = 261,706,884.34
  5. Step 5: Solve for x
    x = 261,706,884.34/19,976.08
  6. Step 6: Final answer
    x = 13,101.01

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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.