Home / 19,997.38-29,975.57-10,106.67

Finding the Fourth Proportional to 19,997.38, 29,975.57 and 10,106.67

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Solution

The fourth proportional to 19,997.38, 29,975.57 and 10,106.67 is: 15,149.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,997.38 : 29,975.57 = 10,106.67 : x
  2. Step 2: Convert to fraction form
    19,997.38/29,975.57 = 10,106.67/x
  3. Step 3: Cross multiply
    19,997.38x = 29,975.57 × 10,106.67
  4. Step 4: Simplify right side
    19,997.38x = 302,953,293.83
  5. Step 5: Solve for x
    x = 302,953,293.83/19,997.38
  6. Step 6: Final answer
    x = 15,149.65

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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.