Home / 20,004.60-27,609.74-15,216.87

Finding the Fourth Proportional to 20,004.60, 27,609.74 and 15,216.87

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Solution

The fourth proportional to 20,004.60, 27,609.74 and 15,216.87 is: 21,001.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,004.60 : 27,609.74 = 15,216.87 : x
  2. Step 2: Convert to fraction form
    20,004.60/27,609.74 = 15,216.87/x
  3. Step 3: Cross multiply
    20,004.60x = 27,609.74 × 15,216.87
  4. Step 4: Simplify right side
    20,004.60x = 420,133,824.31
  5. Step 5: Solve for x
    x = 420,133,824.31/20,004.60
  6. Step 6: Final answer
    x = 21,001.86

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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.