Home / 28,043.06-38,620.68-27,430.70

Finding the Fourth Proportional to 28,043.06, 38,620.68 and 27,430.70

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Solution

The fourth proportional to 28,043.06, 38,620.68 and 27,430.70 is: 37,777.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,043.06 : 38,620.68 = 27,430.70 : x
  2. Step 2: Convert to fraction form
    28,043.06/38,620.68 = 27,430.70/x
  3. Step 3: Cross multiply
    28,043.06x = 38,620.68 × 27,430.70
  4. Step 4: Simplify right side
    28,043.06x = 1,059,392,286.88
  5. Step 5: Solve for x
    x = 1,059,392,286.88/28,043.06
  6. Step 6: Final answer
    x = 37,777.34

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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.