Home / 20,284.70-30,406.19-9,738.90

Finding the Fourth Proportional to 20,284.70, 30,406.19 and 9,738.90

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Solution

The fourth proportional to 20,284.70, 30,406.19 and 9,738.90 is: 14,598.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,284.70 : 30,406.19 = 9,738.90 : x
  2. Step 2: Convert to fraction form
    20,284.70/30,406.19 = 9,738.90/x
  3. Step 3: Cross multiply
    20,284.70x = 30,406.19 × 9,738.90
  4. Step 4: Simplify right side
    20,284.70x = 296,122,795.10
  5. Step 5: Solve for x
    x = 296,122,795.10/20,284.70
  6. Step 6: Final answer
    x = 14,598.34

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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.