Home / 20,227.20-30,373.20-13,682.40

Finding the Fourth Proportional to 20,227.20, 30,373.20 and 13,682.40

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Solution

The fourth proportional to 20,227.20, 30,373.20 and 13,682.40 is: 20,545.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,227.20 : 30,373.20 = 13,682.40 : x
  2. Step 2: Convert to fraction form
    20,227.20/30,373.20 = 13,682.40/x
  3. Step 3: Cross multiply
    20,227.20x = 30,373.20 × 13,682.40
  4. Step 4: Simplify right side
    20,227.20x = 415,578,271.68
  5. Step 5: Solve for x
    x = 415,578,271.68/20,227.20
  6. Step 6: Final answer
    x = 20,545.52

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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.