Home / 40,018.82-55,229.54-22,113.68

Finding the Fourth Proportional to 40,018.82, 55,229.54 and 22,113.68

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Solution

The fourth proportional to 40,018.82, 55,229.54 and 22,113.68 is: 30,518.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,018.82 : 55,229.54 = 22,113.68 : x
  2. Step 2: Convert to fraction form
    40,018.82/55,229.54 = 22,113.68/x
  3. Step 3: Cross multiply
    40,018.82x = 55,229.54 × 22,113.68
  4. Step 4: Simplify right side
    40,018.82x = 1,221,327,987.39
  5. Step 5: Solve for x
    x = 1,221,327,987.39/40,018.82
  6. Step 6: Final answer
    x = 30,518.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.