Home / 20,153.87-30,231.06-5,362.70

Finding the Fourth Proportional to 20,153.87, 30,231.06 and 5,362.70

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Solution

The fourth proportional to 20,153.87, 30,231.06 and 5,362.70 is: 8,044.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,153.87 : 30,231.06 = 5,362.70 : x
  2. Step 2: Convert to fraction form
    20,153.87/30,231.06 = 5,362.70/x
  3. Step 3: Cross multiply
    20,153.87x = 30,231.06 × 5,362.70
  4. Step 4: Simplify right side
    20,153.87x = 162,119,934.20
  5. Step 5: Solve for x
    x = 162,119,934.20/20,153.87
  6. Step 6: Final answer
    x = 8,044.11

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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.