Home / 28,633.58-39,513.17-15,887.31

Finding the Fourth Proportional to 28,633.58, 39,513.17 and 15,887.31

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Solution

The fourth proportional to 28,633.58, 39,513.17 and 15,887.31 is: 21,923.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,633.58 : 39,513.17 = 15,887.31 : x
  2. Step 2: Convert to fraction form
    28,633.58/39,513.17 = 15,887.31/x
  3. Step 3: Cross multiply
    28,633.58x = 39,513.17 × 15,887.31
  4. Step 4: Simplify right side
    28,633.58x = 627,757,901.44
  5. Step 5: Solve for x
    x = 627,757,901.44/28,633.58
  6. Step 6: Final answer
    x = 21,923.84

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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.