Home / 28,404.49-39,198.47-15,657.93

Finding the Fourth Proportional to 28,404.49, 39,198.47 and 15,657.93

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Solution

The fourth proportional to 28,404.49, 39,198.47 and 15,657.93 is: 21,608.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,404.49 : 39,198.47 = 15,657.93 : x
  2. Step 2: Convert to fraction form
    28,404.49/39,198.47 = 15,657.93/x
  3. Step 3: Cross multiply
    28,404.49x = 39,198.47 × 15,657.93
  4. Step 4: Simplify right side
    28,404.49x = 613,766,899.37
  5. Step 5: Solve for x
    x = 613,766,899.37/28,404.49
  6. Step 6: Final answer
    x = 21,608.09

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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.