Home / 30,440.20-45,660.30-25,628.80

Finding the Fourth Proportional to 30,440.20, 45,660.30 and 25,628.80

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Solution

The fourth proportional to 30,440.20, 45,660.30 and 25,628.80 is: 38,443.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,440.20 : 45,660.30 = 25,628.80 : x
  2. Step 2: Convert to fraction form
    30,440.20/45,660.30 = 25,628.80/x
  3. Step 3: Cross multiply
    30,440.20x = 45,660.30 × 25,628.80
  4. Step 4: Simplify right side
    30,440.20x = 1,170,218,696.64
  5. Step 5: Solve for x
    x = 1,170,218,696.64/30,440.20
  6. Step 6: Final answer
    x = 38,443.20

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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.