Home / 20,460.39-28,286.08-20,273.58

Finding the Fourth Proportional to 20,460.39, 28,286.08 and 20,273.58

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Solution

The fourth proportional to 20,460.39, 28,286.08 and 20,273.58 is: 28,027.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,460.39 : 28,286.08 = 20,273.58 : x
  2. Step 2: Convert to fraction form
    20,460.39/28,286.08 = 20,273.58/x
  3. Step 3: Cross multiply
    20,460.39x = 28,286.08 × 20,273.58
  4. Step 4: Simplify right side
    20,460.39x = 573,460,004.40
  5. Step 5: Solve for x
    x = 573,460,004.40/20,460.39
  6. Step 6: Final answer
    x = 28,027.82

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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.