Home / 27,786.23-38,344.74-15,039.15

Finding the Fourth Proportional to 27,786.23, 38,344.74 and 15,039.15

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Solution

The fourth proportional to 27,786.23, 38,344.74 and 15,039.15 is: 20,753.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,786.23 : 38,344.74 = 15,039.15 : x
  2. Step 2: Convert to fraction form
    27,786.23/38,344.74 = 15,039.15/x
  3. Step 3: Cross multiply
    27,786.23x = 38,344.74 × 15,039.15
  4. Step 4: Simplify right side
    27,786.23x = 576,672,296.57
  5. Step 5: Solve for x
    x = 576,672,296.57/27,786.23
  6. Step 6: Final answer
    x = 20,753.89

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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.