Home / 28,302.69-39,057.61-15,556.73

Finding the Fourth Proportional to 28,302.69, 39,057.61 and 15,556.73

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Solution

The fourth proportional to 28,302.69, 39,057.61 and 15,556.73 is: 21,468.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,302.69 : 39,057.61 = 15,556.73 : x
  2. Step 2: Convert to fraction form
    28,302.69/39,057.61 = 15,556.73/x
  3. Step 3: Cross multiply
    28,302.69x = 39,057.61 × 15,556.73
  4. Step 4: Simplify right side
    28,302.69x = 607,608,459.04
  5. Step 5: Solve for x
    x = 607,608,459.04/28,302.69
  6. Step 6: Final answer
    x = 21,468.22

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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.