Home / 28,302.11-39,057.27-15,556.69

Finding the Fourth Proportional to 28,302.11, 39,057.27 and 15,556.69

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Solution

The fourth proportional to 28,302.11, 39,057.27 and 15,556.69 is: 21,468.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,302.11 : 39,057.27 = 15,556.69 : x
  2. Step 2: Convert to fraction form
    28,302.11/39,057.27 = 15,556.69/x
  3. Step 3: Cross multiply
    28,302.11x = 39,057.27 × 15,556.69
  4. Step 4: Simplify right side
    28,302.11x = 607,601,646.35
  5. Step 5: Solve for x
    x = 607,601,646.35/28,302.11
  6. Step 6: Final answer
    x = 21,468.42

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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.