Home / 20,113.70-30,169.20-5,322.30

Finding the Fourth Proportional to 20,113.70, 30,169.20 and 5,322.30

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Solution

The fourth proportional to 20,113.70, 30,169.20 and 5,322.30 is: 7,983.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,113.70 : 30,169.20 = 5,322.30 : x
  2. Step 2: Convert to fraction form
    20,113.70/30,169.20 = 5,322.30/x
  3. Step 3: Cross multiply
    20,113.70x = 30,169.20 × 5,322.30
  4. Step 4: Simplify right side
    20,113.70x = 160,569,533.16
  5. Step 5: Solve for x
    x = 160,569,533.16/20,113.70
  6. Step 6: Final answer
    x = 7,983.09

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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.