Home / 19,900.20-27,433.26-13,913.22

Finding the Fourth Proportional to 19,900.20, 27,433.26 and 13,913.22

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Solution

The fourth proportional to 19,900.20, 27,433.26 and 13,913.22 is: 19,179.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,900.20 : 27,433.26 = 13,913.22 : x
  2. Step 2: Convert to fraction form
    19,900.20/27,433.26 = 13,913.22/x
  3. Step 3: Cross multiply
    19,900.20x = 27,433.26 × 13,913.22
  4. Step 4: Simplify right side
    19,900.20x = 381,684,981.70
  5. Step 5: Solve for x
    x = 381,684,981.70/19,900.20
  6. Step 6: Final answer
    x = 19,179.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.