Home / 20,150.49-30,225.70-5,359.41

Finding the Fourth Proportional to 20,150.49, 30,225.70 and 5,359.41

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Solution

The fourth proportional to 20,150.49, 30,225.70 and 5,359.41 is: 8,039.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.49 : 30,225.70 = 5,359.41 : x
  2. Step 2: Convert to fraction form
    20,150.49/30,225.70 = 5,359.41/x
  3. Step 3: Cross multiply
    20,150.49x = 30,225.70 × 5,359.41
  4. Step 4: Simplify right side
    20,150.49x = 161,991,918.84
  5. Step 5: Solve for x
    x = 161,991,918.84/20,150.49
  6. Step 6: Final answer
    x = 8,039.11

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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.