Home / 27,739.64-38,274.72-15,799.70

Finding the Fourth Proportional to 27,739.64, 38,274.72 and 15,799.70

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Solution

The fourth proportional to 27,739.64, 38,274.72 and 15,799.70 is: 21,800.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,739.64 : 38,274.72 = 15,799.70 : x
  2. Step 2: Convert to fraction form
    27,739.64/38,274.72 = 15,799.70/x
  3. Step 3: Cross multiply
    27,739.64x = 38,274.72 × 15,799.70
  4. Step 4: Simplify right side
    27,739.64x = 604,729,093.58
  5. Step 5: Solve for x
    x = 604,729,093.58/27,739.64
  6. Step 6: Final answer
    x = 21,800.18

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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.