Home / 28,309.45-39,067.49-15,563.19

Finding the Fourth Proportional to 28,309.45, 39,067.49 and 15,563.19

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Solution

The fourth proportional to 28,309.45, 39,067.49 and 15,563.19 is: 21,477.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,309.45 : 39,067.49 = 15,563.19 : x
  2. Step 2: Convert to fraction form
    28,309.45/39,067.49 = 15,563.19/x
  3. Step 3: Cross multiply
    28,309.45x = 39,067.49 × 15,563.19
  4. Step 4: Simplify right side
    28,309.45x = 608,014,691.58
  5. Step 5: Solve for x
    x = 608,014,691.58/28,309.45
  6. Step 6: Final answer
    x = 21,477.45

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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.