Home / 22,043.07-30,419.75-11,971.53

Finding the Fourth Proportional to 22,043.07, 30,419.75 and 11,971.53

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Solution

The fourth proportional to 22,043.07, 30,419.75 and 11,971.53 is: 16,520.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,043.07 : 30,419.75 = 11,971.53 : x
  2. Step 2: Convert to fraction form
    22,043.07/30,419.75 = 11,971.53/x
  3. Step 3: Cross multiply
    22,043.07x = 30,419.75 × 11,971.53
  4. Step 4: Simplify right side
    22,043.07x = 364,170,979.65
  5. Step 5: Solve for x
    x = 364,170,979.65/22,043.07
  6. Step 6: Final answer
    x = 16,520.88

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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.