Home / 27,668.60-38,182.22-15,731.69

Finding the Fourth Proportional to 27,668.60, 38,182.22 and 15,731.69

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Solution

The fourth proportional to 27,668.60, 38,182.22 and 15,731.69 is: 21,709.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,668.60 : 38,182.22 = 15,731.69 : x
  2. Step 2: Convert to fraction form
    27,668.60/38,182.22 = 15,731.69/x
  3. Step 3: Cross multiply
    27,668.60x = 38,182.22 × 15,731.69
  4. Step 4: Simplify right side
    27,668.60x = 600,670,637.98
  5. Step 5: Solve for x
    x = 600,670,637.98/27,668.60
  6. Step 6: Final answer
    x = 21,709.47

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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.