Home / 20,454.77-30,665.57-9,201.87

Finding the Fourth Proportional to 20,454.77, 30,665.57 and 9,201.87

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Solution

The fourth proportional to 20,454.77, 30,665.57 and 9,201.87 is: 13,795.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,454.77 : 30,665.57 = 9,201.87 : x
  2. Step 2: Convert to fraction form
    20,454.77/30,665.57 = 9,201.87/x
  3. Step 3: Cross multiply
    20,454.77x = 30,665.57 × 9,201.87
  4. Step 4: Simplify right side
    20,454.77x = 282,180,588.62
  5. Step 5: Solve for x
    x = 282,180,588.62/20,454.77
  6. Step 6: Final answer
    x = 13,795.34

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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.