Home / 25,803.28-38,792.40-20,604.70

Finding the Fourth Proportional to 25,803.28, 38,792.40 and 20,604.70

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Solution

The fourth proportional to 25,803.28, 38,792.40 and 20,604.70 is: 30,976.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,803.28 : 38,792.40 = 20,604.70 : x
  2. Step 2: Convert to fraction form
    25,803.28/38,792.40 = 20,604.70/x
  3. Step 3: Cross multiply
    25,803.28x = 38,792.40 × 20,604.70
  4. Step 4: Simplify right side
    25,803.28x = 799,305,467.29
  5. Step 5: Solve for x
    x = 799,305,467.29/25,803.28
  6. Step 6: Final answer
    x = 30,976.90

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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.