Home / 27,684.39-38,205.70-15,589.03

Finding the Fourth Proportional to 27,684.39, 38,205.70 and 15,589.03

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Solution

The fourth proportional to 27,684.39, 38,205.70 and 15,589.03 is: 21,513.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,684.39 : 38,205.70 = 15,589.03 : x
  2. Step 2: Convert to fraction form
    27,684.39/38,205.70 = 15,589.03/x
  3. Step 3: Cross multiply
    27,684.39x = 38,205.70 × 15,589.03
  4. Step 4: Simplify right side
    27,684.39x = 595,589,803.47
  5. Step 5: Solve for x
    x = 595,589,803.47/27,684.39
  6. Step 6: Final answer
    x = 21,513.56

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Half scale
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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.