Home / 18,240.71-27,361.07-14,086.78

Finding the Fourth Proportional to 18,240.71, 27,361.07 and 14,086.78

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Solution

The fourth proportional to 18,240.71, 27,361.07 and 14,086.78 is: 21,130.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,240.71 : 27,361.07 = 14,086.78 : x
  2. Step 2: Convert to fraction form
    18,240.71/27,361.07 = 14,086.78/x
  3. Step 3: Cross multiply
    18,240.71x = 27,361.07 × 14,086.78
  4. Step 4: Simplify right side
    18,240.71x = 385,429,366.88
  5. Step 5: Solve for x
    x = 385,429,366.88/18,240.71
  6. Step 6: Final answer
    x = 21,130.17

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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.