Home / 20,229.12-30,303.63-9,540.84

Finding the Fourth Proportional to 20,229.12, 30,303.63 and 9,540.84

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Solution

The fourth proportional to 20,229.12, 30,303.63 and 9,540.84 is: 14,292.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,229.12 : 30,303.63 = 9,540.84 : x
  2. Step 2: Convert to fraction form
    20,229.12/30,303.63 = 9,540.84/x
  3. Step 3: Cross multiply
    20,229.12x = 30,303.63 × 9,540.84
  4. Step 4: Simplify right side
    20,229.12x = 289,122,085.25
  5. Step 5: Solve for x
    x = 289,122,085.25/20,229.12
  6. Step 6: Final answer
    x = 14,292.37

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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.