Home / 20,371.30-30,603.72-14,381.15

Finding the Fourth Proportional to 20,371.30, 30,603.72 and 14,381.15

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Solution

The fourth proportional to 20,371.30, 30,603.72 and 14,381.15 is: 21,604.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,371.30 : 30,603.72 = 14,381.15 : x
  2. Step 2: Convert to fraction form
    20,371.30/30,603.72 = 14,381.15/x
  3. Step 3: Cross multiply
    20,371.30x = 30,603.72 × 14,381.15
  4. Step 4: Simplify right side
    20,371.30x = 440,116,687.88
  5. Step 5: Solve for x
    x = 440,116,687.88/20,371.30
  6. Step 6: Final answer
    x = 21,604.74

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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.