Home / 20,371.43-30,603.92-14,381.28

Finding the Fourth Proportional to 20,371.43, 30,603.92 and 14,381.28

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Solution

The fourth proportional to 20,371.43, 30,603.92 and 14,381.28 is: 21,604.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,371.43 : 30,603.92 = 14,381.28 : x
  2. Step 2: Convert to fraction form
    20,371.43/30,603.92 = 14,381.28/x
  3. Step 3: Cross multiply
    20,371.43x = 30,603.92 × 14,381.28
  4. Step 4: Simplify right side
    20,371.43x = 440,123,470.71
  5. Step 5: Solve for x
    x = 440,123,470.71/20,371.43
  6. Step 6: Final answer
    x = 21,604.93

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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.