Home / 25,305.60-37,908.72-20,631.36

Finding the Fourth Proportional to 25,305.60, 37,908.72 and 20,631.36

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Solution

The fourth proportional to 25,305.60, 37,908.72 and 20,631.36 is: 30,906.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,305.60 : 37,908.72 = 20,631.36 : x
  2. Step 2: Convert to fraction form
    25,305.60/37,908.72 = 20,631.36/x
  3. Step 3: Cross multiply
    25,305.60x = 37,908.72 × 20,631.36
  4. Step 4: Simplify right side
    25,305.60x = 782,108,449.46
  5. Step 5: Solve for x
    x = 782,108,449.46/25,305.60
  6. Step 6: Final answer
    x = 30,906.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.