Home / 28,243.62-42,387.30-15,107.04

Finding the Fourth Proportional to 28,243.62, 42,387.30 and 15,107.04

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Solution

The fourth proportional to 28,243.62, 42,387.30 and 15,107.04 is: 22,672.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,243.62 : 42,387.30 = 15,107.04 : x
  2. Step 2: Convert to fraction form
    28,243.62/42,387.30 = 15,107.04/x
  3. Step 3: Cross multiply
    28,243.62x = 42,387.30 × 15,107.04
  4. Step 4: Simplify right side
    28,243.62x = 640,346,636.59
  5. Step 5: Solve for x
    x = 640,346,636.59/28,243.62
  6. Step 6: Final answer
    x = 22,672.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.