Home / 20,642.72-30,954.49-10,113.26

Finding the Fourth Proportional to 20,642.72, 30,954.49 and 10,113.26

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Solution

The fourth proportional to 20,642.72, 30,954.49 and 10,113.26 is: 15,165.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,642.72 : 30,954.49 = 10,113.26 : x
  2. Step 2: Convert to fraction form
    20,642.72/30,954.49 = 10,113.26/x
  3. Step 3: Cross multiply
    20,642.72x = 30,954.49 × 10,113.26
  4. Step 4: Simplify right side
    20,642.72x = 313,050,625.48
  5. Step 5: Solve for x
    x = 313,050,625.48/20,642.72
  6. Step 6: Final answer
    x = 15,165.19

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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.