Home / 28,550.13-39,399.17-15,977.31

Finding the Fourth Proportional to 28,550.13, 39,399.17 and 15,977.31

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Solution

The fourth proportional to 28,550.13, 39,399.17 and 15,977.31 is: 22,048.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,550.13 : 39,399.17 = 15,977.31 : x
  2. Step 2: Convert to fraction form
    28,550.13/39,399.17 = 15,977.31/x
  3. Step 3: Cross multiply
    28,550.13x = 39,399.17 × 15,977.31
  4. Step 4: Simplify right side
    28,550.13x = 629,492,752.83
  5. Step 5: Solve for x
    x = 629,492,752.83/28,550.13
  6. Step 6: Final answer
    x = 22,048.68

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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.