Home / 40,117.26-55,361.65-21,968.06

Finding the Fourth Proportional to 40,117.26, 55,361.65 and 21,968.06

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Solution

The fourth proportional to 40,117.26, 55,361.65 and 21,968.06 is: 30,315.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,117.26 : 55,361.65 = 21,968.06 : x
  2. Step 2: Convert to fraction form
    40,117.26/55,361.65 = 21,968.06/x
  3. Step 3: Cross multiply
    40,117.26x = 55,361.65 × 21,968.06
  4. Step 4: Simplify right side
    40,117.26x = 1,216,188,131.56
  5. Step 5: Solve for x
    x = 1,216,188,131.56/40,117.26
  6. Step 6: Final answer
    x = 30,315.83

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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.