Home / 21,576.28-29,769.44-12,626

Finding the Fourth Proportional to 21,576.28, 29,769.44 and 12,626

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Solution

The fourth proportional to 21,576.28, 29,769.44 and 12,626 is: 17,420.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,576.28 : 29,769.44 = 12,626 : x
  2. Step 2: Convert to fraction form
    21,576.28/29,769.44 = 12,626/x
  3. Step 3: Cross multiply
    21,576.28x = 29,769.44 × 12,626
  4. Step 4: Simplify right side
    21,576.28x = 375,868,949.44
  5. Step 5: Solve for x
    x = 375,868,949.44/21,576.28
  6. Step 6: Final answer
    x = 17,420.47

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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.