Home / 21,992.62-30,330.20-17,148.53

Finding the Fourth Proportional to 21,992.62, 30,330.20 and 17,148.53

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Solution

The fourth proportional to 21,992.62, 30,330.20 and 17,148.53 is: 23,649.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,992.62 : 30,330.20 = 17,148.53 : x
  2. Step 2: Convert to fraction form
    21,992.62/30,330.20 = 17,148.53/x
  3. Step 3: Cross multiply
    21,992.62x = 30,330.20 × 17,148.53
  4. Step 4: Simplify right side
    21,992.62x = 520,118,107.21
  5. Step 5: Solve for x
    x = 520,118,107.21/21,992.62
  6. Step 6: Final answer
    x = 23,649.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.