Home / 27,221.76-37,566-15,899.04

Finding the Fourth Proportional to 27,221.76, 37,566 and 15,899.04

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Solution

The fourth proportional to 27,221.76, 37,566 and 15,899.04 is: 21,940.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,221.76 : 37,566 = 15,899.04 : x
  2. Step 2: Convert to fraction form
    27,221.76/37,566 = 15,899.04/x
  3. Step 3: Cross multiply
    27,221.76x = 37,566 × 15,899.04
  4. Step 4: Simplify right side
    27,221.76x = 597,263,336.64
  5. Step 5: Solve for x
    x = 597,263,336.64/27,221.76
  6. Step 6: Final answer
    x = 21,940.66

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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.