Home / 20,247.40-30,355.26-9,856.36

Finding the Fourth Proportional to 20,247.40, 30,355.26 and 9,856.36

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Solution

The fourth proportional to 20,247.40, 30,355.26 and 9,856.36 is: 14,776.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,247.40 : 30,355.26 = 9,856.36 : x
  2. Step 2: Convert to fraction form
    20,247.40/30,355.26 = 9,856.36/x
  3. Step 3: Cross multiply
    20,247.40x = 30,355.26 × 9,856.36
  4. Step 4: Simplify right side
    20,247.40x = 299,192,370.45
  5. Step 5: Solve for x
    x = 299,192,370.45/20,247.40
  6. Step 6: Final answer
    x = 14,776.83

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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.