Home / 21,975.68-30,343.91-20,296.41

Finding the Fourth Proportional to 21,975.68, 30,343.91 and 20,296.41

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Solution

The fourth proportional to 21,975.68, 30,343.91 and 20,296.41 is: 28,025.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,975.68 : 30,343.91 = 20,296.41 : x
  2. Step 2: Convert to fraction form
    21,975.68/30,343.91 = 20,296.41/x
  3. Step 3: Cross multiply
    21,975.68x = 30,343.91 × 20,296.41
  4. Step 4: Simplify right side
    21,975.68x = 615,872,336.88
  5. Step 5: Solve for x
    x = 615,872,336.88/21,975.68
  6. Step 6: Final answer
    x = 28,025.18

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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.