Home / 27,786.12-38,344.53-15,039.01

Finding the Fourth Proportional to 27,786.12, 38,344.53 and 15,039.01

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Solution

The fourth proportional to 27,786.12, 38,344.53 and 15,039.01 is: 20,753.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,786.12 : 38,344.53 = 15,039.01 : x
  2. Step 2: Convert to fraction form
    27,786.12/38,344.53 = 15,039.01/x
  3. Step 3: Cross multiply
    27,786.12x = 38,344.53 × 15,039.01
  4. Step 4: Simplify right side
    27,786.12x = 576,663,770.12
  5. Step 5: Solve for x
    x = 576,663,770.12/27,786.12
  6. Step 6: Final answer
    x = 20,753.66

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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.