Home / 20,187.68-30,282.88-6,862.01

Finding the Fourth Proportional to 20,187.68, 30,282.88 and 6,862.01

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Solution

The fourth proportional to 20,187.68, 30,282.88 and 6,862.01 is: 10,293.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,187.68 : 30,282.88 = 6,862.01 : x
  2. Step 2: Convert to fraction form
    20,187.68/30,282.88 = 6,862.01/x
  3. Step 3: Cross multiply
    20,187.68x = 30,282.88 × 6,862.01
  4. Step 4: Simplify right side
    20,187.68x = 207,801,425.39
  5. Step 5: Solve for x
    x = 207,801,425.39/20,187.68
  6. Step 6: Final answer
    x = 10,293.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.