Home / 26,021.28-38,996.94-13,515.30

Finding the Fourth Proportional to 26,021.28, 38,996.94 and 13,515.30

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Solution

The fourth proportional to 26,021.28, 38,996.94 and 13,515.30 is: 20,254.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,021.28 : 38,996.94 = 13,515.30 : x
  2. Step 2: Convert to fraction form
    26,021.28/38,996.94 = 13,515.30/x
  3. Step 3: Cross multiply
    26,021.28x = 38,996.94 × 13,515.30
  4. Step 4: Simplify right side
    26,021.28x = 527,055,343.18
  5. Step 5: Solve for x
    x = 527,055,343.18/26,021.28
  6. Step 6: Final answer
    x = 20,254.78

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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.