Home / 27,087.72-37,379.61-15,756.63

Finding the Fourth Proportional to 27,087.72, 37,379.61 and 15,756.63

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Solution

The fourth proportional to 27,087.72, 37,379.61 and 15,756.63 is: 21,743.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,087.72 : 37,379.61 = 15,756.63 : x
  2. Step 2: Convert to fraction form
    27,087.72/37,379.61 = 15,756.63/x
  3. Step 3: Cross multiply
    27,087.72x = 37,379.61 × 15,756.63
  4. Step 4: Simplify right side
    27,087.72x = 588,976,684.31
  5. Step 5: Solve for x
    x = 588,976,684.31/27,087.72
  6. Step 6: Final answer
    x = 21,743.31

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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.