Home / 20,182.36-30,295.32-15,305.28

Finding the Fourth Proportional to 20,182.36, 30,295.32 and 15,305.28

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Solution

The fourth proportional to 20,182.36, 30,295.32 and 15,305.28 is: 22,974.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,182.36 : 30,295.32 = 15,305.28 : x
  2. Step 2: Convert to fraction form
    20,182.36/30,295.32 = 15,305.28/x
  3. Step 3: Cross multiply
    20,182.36x = 30,295.32 × 15,305.28
  4. Step 4: Simplify right side
    20,182.36x = 463,678,355.29
  5. Step 5: Solve for x
    x = 463,678,355.29/20,182.36
  6. Step 6: Final answer
    x = 22,974.44

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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.