Home / 19,742.82-29,626.32-10,389.54

Finding the Fourth Proportional to 19,742.82, 29,626.32 and 10,389.54

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Solution

The fourth proportional to 19,742.82, 29,626.32 and 10,389.54 is: 15,590.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,742.82 : 29,626.32 = 10,389.54 : x
  2. Step 2: Convert to fraction form
    19,742.82/29,626.32 = 10,389.54/x
  3. Step 3: Cross multiply
    19,742.82x = 29,626.32 × 10,389.54
  4. Step 4: Simplify right side
    19,742.82x = 307,803,836.69
  5. Step 5: Solve for x
    x = 307,803,836.69/19,742.82
  6. Step 6: Final answer
    x = 15,590.67

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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.