Home / 20,214.21-30,302.69-18,553.71

Finding the Fourth Proportional to 20,214.21, 30,302.69 and 18,553.71

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Solution

The fourth proportional to 20,214.21, 30,302.69 and 18,553.71 is: 27,813.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,214.21 : 30,302.69 = 18,553.71 : x
  2. Step 2: Convert to fraction form
    20,214.21/30,302.69 = 18,553.71/x
  3. Step 3: Cross multiply
    20,214.21x = 30,302.69 × 18,553.71
  4. Step 4: Simplify right side
    20,214.21x = 562,227,229.71
  5. Step 5: Solve for x
    x = 562,227,229.71/20,214.21
  6. Step 6: Final answer
    x = 27,813.47

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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.