Home / 20,151.79-30,204.70-9,606.80

Finding the Fourth Proportional to 20,151.79, 30,204.70 and 9,606.80

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Solution

The fourth proportional to 20,151.79, 30,204.70 and 9,606.80 is: 14,399.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,151.79 : 30,204.70 = 9,606.80 : x
  2. Step 2: Convert to fraction form
    20,151.79/30,204.70 = 9,606.80/x
  3. Step 3: Cross multiply
    20,151.79x = 30,204.70 × 9,606.80
  4. Step 4: Simplify right side
    20,151.79x = 290,170,563.45
  5. Step 5: Solve for x
    x = 290,170,563.45/20,151.79
  6. Step 6: Final answer
    x = 14,399.25

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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.