Home / 27,617.64-41,299.26-20,515.28

Finding the Fourth Proportional to 27,617.64, 41,299.26 and 20,515.28

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Solution

The fourth proportional to 27,617.64, 41,299.26 and 20,515.28 is: 30,678.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,617.64 : 41,299.26 = 20,515.28 : x
  2. Step 2: Convert to fraction form
    27,617.64/41,299.26 = 20,515.28/x
  3. Step 3: Cross multiply
    27,617.64x = 41,299.26 × 20,515.28
  4. Step 4: Simplify right side
    27,617.64x = 847,265,882.69
  5. Step 5: Solve for x
    x = 847,265,882.69/27,617.64
  6. Step 6: Final answer
    x = 30,678.43

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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.