Home / 28,556.87-39,403.33-16,455.17

Finding the Fourth Proportional to 28,556.87, 39,403.33 and 16,455.17

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Solution

The fourth proportional to 28,556.87, 39,403.33 and 16,455.17 is: 22,705.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,556.87 : 39,403.33 = 16,455.17 : x
  2. Step 2: Convert to fraction form
    28,556.87/39,403.33 = 16,455.17/x
  3. Step 3: Cross multiply
    28,556.87x = 39,403.33 × 16,455.17
  4. Step 4: Simplify right side
    28,556.87x = 648,388,329.44
  5. Step 5: Solve for x
    x = 648,388,329.44/28,556.87
  6. Step 6: Final answer
    x = 22,705.16

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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.