Home / 20,601.04-30,900.12-5,809.36

Finding the Fourth Proportional to 20,601.04, 30,900.12 and 5,809.36

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Solution

The fourth proportional to 20,601.04, 30,900.12 and 5,809.36 is: 8,713.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,601.04 : 30,900.12 = 5,809.36 : x
  2. Step 2: Convert to fraction form
    20,601.04/30,900.12 = 5,809.36/x
  3. Step 3: Cross multiply
    20,601.04x = 30,900.12 × 5,809.36
  4. Step 4: Simplify right side
    20,601.04x = 179,509,921.12
  5. Step 5: Solve for x
    x = 179,509,921.12/20,601.04
  6. Step 6: Final answer
    x = 8,713.63

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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.