Home / 19,717.72-29,581.90-8,625.40

Finding the Fourth Proportional to 19,717.72, 29,581.90 and 8,625.40

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Solution

The fourth proportional to 19,717.72, 29,581.90 and 8,625.40 is: 12,940.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,717.72 : 29,581.90 = 8,625.40 : x
  2. Step 2: Convert to fraction form
    19,717.72/29,581.90 = 8,625.40/x
  3. Step 3: Cross multiply
    19,717.72x = 29,581.90 × 8,625.40
  4. Step 4: Simplify right side
    19,717.72x = 255,155,720.26
  5. Step 5: Solve for x
    x = 255,155,720.26/19,717.72
  6. Step 6: Final answer
    x = 12,940.43

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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.