Home / 20,226.81-30,353.89-7,079.30

Finding the Fourth Proportional to 20,226.81, 30,353.89 and 7,079.30

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Solution

The fourth proportional to 20,226.81, 30,353.89 and 7,079.30 is: 10,623.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,226.81 : 30,353.89 = 7,079.30 : x
  2. Step 2: Convert to fraction form
    20,226.81/30,353.89 = 7,079.30/x
  3. Step 3: Cross multiply
    20,226.81x = 30,353.89 × 7,079.30
  4. Step 4: Simplify right side
    20,226.81x = 214,884,293.48
  5. Step 5: Solve for x
    x = 214,884,293.48/20,226.81
  6. Step 6: Final answer
    x = 10,623.74

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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.