Home / 28,299.88-39,051.94-15,552.78

Finding the Fourth Proportional to 28,299.88, 39,051.94 and 15,552.78

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Solution

The fourth proportional to 28,299.88, 39,051.94 and 15,552.78 is: 21,461.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,299.88 : 39,051.94 = 15,552.78 : x
  2. Step 2: Convert to fraction form
    28,299.88/39,051.94 = 15,552.78/x
  3. Step 3: Cross multiply
    28,299.88x = 39,051.94 × 15,552.78
  4. Step 4: Simplify right side
    28,299.88x = 607,366,404.73
  5. Step 5: Solve for x
    x = 607,366,404.73/28,299.88
  6. Step 6: Final answer
    x = 21,461.80

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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.