Home / 22,011.48-30,375.86-11,939.90

Finding the Fourth Proportional to 22,011.48, 30,375.86 and 11,939.90

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Solution

The fourth proportional to 22,011.48, 30,375.86 and 11,939.90 is: 16,477.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,011.48 : 30,375.86 = 11,939.90 : x
  2. Step 2: Convert to fraction form
    22,011.48/30,375.86 = 11,939.90/x
  3. Step 3: Cross multiply
    22,011.48x = 30,375.86 × 11,939.90
  4. Step 4: Simplify right side
    22,011.48x = 362,684,519.24
  5. Step 5: Solve for x
    x = 362,684,519.24/22,011.48
  6. Step 6: Final answer
    x = 16,477.06

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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.