Home / 20,587.80-30,850.14-10,730.28

Finding the Fourth Proportional to 20,587.80, 30,850.14 and 10,730.28

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Solution

The fourth proportional to 20,587.80, 30,850.14 and 10,730.28 is: 16,078.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,587.80 : 30,850.14 = 10,730.28 : x
  2. Step 2: Convert to fraction form
    20,587.80/30,850.14 = 10,730.28/x
  3. Step 3: Cross multiply
    20,587.80x = 30,850.14 × 10,730.28
  4. Step 4: Simplify right side
    20,587.80x = 331,030,640.24
  5. Step 5: Solve for x
    x = 331,030,640.24/20,587.80
  6. Step 6: Final answer
    x = 16,078.97

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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.