Home / 28,665.58-39,577.24-18,622.65

Finding the Fourth Proportional to 28,665.58, 39,577.24 and 18,622.65

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Solution

The fourth proportional to 28,665.58, 39,577.24 and 18,622.65 is: 25,711.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,665.58 : 39,577.24 = 18,622.65 : x
  2. Step 2: Convert to fraction form
    28,665.58/39,577.24 = 18,622.65/x
  3. Step 3: Cross multiply
    28,665.58x = 39,577.24 × 18,622.65
  4. Step 4: Simplify right side
    28,665.58x = 737,032,844.04
  5. Step 5: Solve for x
    x = 737,032,844.04/28,665.58
  6. Step 6: Final answer
    x = 25,711.42

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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.