Home / 20,246.84-27,931.50-11,859.80

Finding the Fourth Proportional to 20,246.84, 27,931.50 and 11,859.80

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Solution

The fourth proportional to 20,246.84, 27,931.50 and 11,859.80 is: 16,361.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,246.84 : 27,931.50 = 11,859.80 : x
  2. Step 2: Convert to fraction form
    20,246.84/27,931.50 = 11,859.80/x
  3. Step 3: Cross multiply
    20,246.84x = 27,931.50 × 11,859.80
  4. Step 4: Simplify right side
    20,246.84x = 331,262,003.70
  5. Step 5: Solve for x
    x = 331,262,003.70/20,246.84
  6. Step 6: Final answer
    x = 16,361.17

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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.