Home / 40,132.41-55,382.74-21,983.21

Finding the Fourth Proportional to 40,132.41, 55,382.74 and 21,983.21

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Solution

The fourth proportional to 40,132.41, 55,382.74 and 21,983.21 is: 30,336.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,132.41 : 55,382.74 = 21,983.21 : x
  2. Step 2: Convert to fraction form
    40,132.41/55,382.74 = 21,983.21/x
  3. Step 3: Cross multiply
    40,132.41x = 55,382.74 × 21,983.21
  4. Step 4: Simplify right side
    40,132.41x = 1,217,490,591.14
  5. Step 5: Solve for x
    x = 1,217,490,591.14/40,132.41
  6. Step 6: Final answer
    x = 30,336.84

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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.