Home / 27,387.79-37,791.84-15,451.63

Finding the Fourth Proportional to 27,387.79, 37,791.84 and 15,451.63

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Solution

The fourth proportional to 27,387.79, 37,791.84 and 15,451.63 is: 21,321.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,387.79 : 37,791.84 = 15,451.63 : x
  2. Step 2: Convert to fraction form
    27,387.79/37,791.84 = 15,451.63/x
  3. Step 3: Cross multiply
    27,387.79x = 37,791.84 × 15,451.63
  4. Step 4: Simplify right side
    27,387.79x = 583,945,528.70
  5. Step 5: Solve for x
    x = 583,945,528.70/27,387.79
  6. Step 6: Final answer
    x = 21,321.38

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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.