Home / 20,974.53-31,461.75-14,380.71

Finding the Fourth Proportional to 20,974.53, 31,461.75 and 14,380.71

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Solution

The fourth proportional to 20,974.53, 31,461.75 and 14,380.71 is: 21,571.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,974.53 : 31,461.75 = 14,380.71 : x
  2. Step 2: Convert to fraction form
    20,974.53/31,461.75 = 14,380.71/x
  3. Step 3: Cross multiply
    20,974.53x = 31,461.75 × 14,380.71
  4. Step 4: Simplify right side
    20,974.53x = 452,442,302.84
  5. Step 5: Solve for x
    x = 452,442,302.84/20,974.53
  6. Step 6: Final answer
    x = 21,571.03

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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.