Home / 21,544.50-29,731.20-11,984.46

Finding the Fourth Proportional to 21,544.50, 29,731.20 and 11,984.46

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Solution

The fourth proportional to 21,544.50, 29,731.20 and 11,984.46 is: 16,538.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,544.50 : 29,731.20 = 11,984.46 : x
  2. Step 2: Convert to fraction form
    21,544.50/29,731.20 = 11,984.46/x
  3. Step 3: Cross multiply
    21,544.50x = 29,731.20 × 11,984.46
  4. Step 4: Simplify right side
    21,544.50x = 356,312,377.15
  5. Step 5: Solve for x
    x = 356,312,377.15/21,544.50
  6. Step 6: Final answer
    x = 16,538.44

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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.