Home / 34,428.72-51,512.76-20,396.28

Finding the Fourth Proportional to 34,428.72, 51,512.76 and 20,396.28

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Solution

The fourth proportional to 34,428.72, 51,512.76 and 20,396.28 is: 30,517.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,428.72 : 51,512.76 = 20,396.28 : x
  2. Step 2: Convert to fraction form
    34,428.72/51,512.76 = 20,396.28/x
  3. Step 3: Cross multiply
    34,428.72x = 51,512.76 × 20,396.28
  4. Step 4: Simplify right side
    34,428.72x = 1,050,668,676.53
  5. Step 5: Solve for x
    x = 1,050,668,676.53/34,428.72
  6. Step 6: Final answer
    x = 30,517.22

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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.