Home / 20,118.43-30,193.59-10,637.48

Finding the Fourth Proportional to 20,118.43, 30,193.59 and 10,637.48

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Solution

The fourth proportional to 20,118.43, 30,193.59 and 10,637.48 is: 15,964.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,118.43 : 30,193.59 = 10,637.48 : x
  2. Step 2: Convert to fraction form
    20,118.43/30,193.59 = 10,637.48/x
  3. Step 3: Cross multiply
    20,118.43x = 30,193.59 × 10,637.48
  4. Step 4: Simplify right side
    20,118.43x = 321,183,825.13
  5. Step 5: Solve for x
    x = 321,183,825.13/20,118.43
  6. Step 6: Final answer
    x = 15,964.66

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1.5x scale

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.