Home / 27,313.07-37,690.79-15,212.91

Finding the Fourth Proportional to 27,313.07, 37,690.79 and 15,212.91

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Solution

The fourth proportional to 27,313.07, 37,690.79 and 15,212.91 is: 20,993.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,313.07 : 37,690.79 = 15,212.91 : x
  2. Step 2: Convert to fraction form
    27,313.07/37,690.79 = 15,212.91/x
  3. Step 3: Cross multiply
    27,313.07x = 37,690.79 × 15,212.91
  4. Step 4: Simplify right side
    27,313.07x = 573,386,789.73
  5. Step 5: Solve for x
    x = 573,386,789.73/27,313.07
  6. Step 6: Final answer
    x = 20,993.13

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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.