Home / 20,265.93-30,358.14-10,103.65

Finding the Fourth Proportional to 20,265.93, 30,358.14 and 10,103.65

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Solution

The fourth proportional to 20,265.93, 30,358.14 and 10,103.65 is: 15,135.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,265.93 : 30,358.14 = 10,103.65 : x
  2. Step 2: Convert to fraction form
    20,265.93/30,358.14 = 10,103.65/x
  3. Step 3: Cross multiply
    20,265.93x = 30,358.14 × 10,103.65
  4. Step 4: Simplify right side
    20,265.93x = 306,727,907.43
  5. Step 5: Solve for x
    x = 306,727,907.43/20,265.93
  6. Step 6: Final answer
    x = 15,135.15

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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.