Home / 26,428.78-36,490.85-17,013.75

Finding the Fourth Proportional to 26,428.78, 36,490.85 and 17,013.75

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Solution

The fourth proportional to 26,428.78, 36,490.85 and 17,013.75 is: 23,491.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,428.78 : 36,490.85 = 17,013.75 : x
  2. Step 2: Convert to fraction form
    26,428.78/36,490.85 = 17,013.75/x
  3. Step 3: Cross multiply
    26,428.78x = 36,490.85 × 17,013.75
  4. Step 4: Simplify right side
    26,428.78x = 620,846,136.78
  5. Step 5: Solve for x
    x = 620,846,136.78/26,428.78
  6. Step 6: Final answer
    x = 23,491.29

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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.