Home / 20,396.69-30,545.64-10,375.07

Finding the Fourth Proportional to 20,396.69, 30,545.64 and 10,375.07

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Solution

The fourth proportional to 20,396.69, 30,545.64 and 10,375.07 is: 15,537.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,396.69 : 30,545.64 = 10,375.07 : x
  2. Step 2: Convert to fraction form
    20,396.69/30,545.64 = 10,375.07/x
  3. Step 3: Cross multiply
    20,396.69x = 30,545.64 × 10,375.07
  4. Step 4: Simplify right side
    20,396.69x = 316,913,101.32
  5. Step 5: Solve for x
    x = 316,913,101.32/20,396.69
  6. Step 6: Final answer
    x = 15,537.48

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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.