Home / 19,568.66-29,354.08-7,880.36

Finding the Fourth Proportional to 19,568.66, 29,354.08 and 7,880.36

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Solution

The fourth proportional to 19,568.66, 29,354.08 and 7,880.36 is: 11,820.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,568.66 : 29,354.08 = 7,880.36 : x
  2. Step 2: Convert to fraction form
    19,568.66/29,354.08 = 7,880.36/x
  3. Step 3: Cross multiply
    19,568.66x = 29,354.08 × 7,880.36
  4. Step 4: Simplify right side
    19,568.66x = 231,320,717.87
  5. Step 5: Solve for x
    x = 231,320,717.87/19,568.66
  6. Step 6: Final answer
    x = 11,820.98

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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.