Home / 27,219.71-37,576.49-21,155.64

Finding the Fourth Proportional to 27,219.71, 37,576.49 and 21,155.64

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Solution

The fourth proportional to 27,219.71, 37,576.49 and 21,155.64 is: 29,205.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,219.71 : 37,576.49 = 21,155.64 : x
  2. Step 2: Convert to fraction form
    27,219.71/37,576.49 = 21,155.64/x
  3. Step 3: Cross multiply
    27,219.71x = 37,576.49 × 21,155.64
  4. Step 4: Simplify right side
    27,219.71x = 794,954,589.13
  5. Step 5: Solve for x
    x = 794,954,589.13/27,219.71
  6. Step 6: Final answer
    x = 29,205.11

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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.