Home / 20,635.12-30,942.48-14,708.80

Finding the Fourth Proportional to 20,635.12, 30,942.48 and 14,708.80

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Solution

The fourth proportional to 20,635.12, 30,942.48 and 14,708.80 is: 22,055.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,635.12 : 30,942.48 = 14,708.80 : x
  2. Step 2: Convert to fraction form
    20,635.12/30,942.48 = 14,708.80/x
  3. Step 3: Cross multiply
    20,635.12x = 30,942.48 × 14,708.80
  4. Step 4: Simplify right side
    20,635.12x = 455,126,749.82
  5. Step 5: Solve for x
    x = 455,126,749.82/20,635.12
  6. Step 6: Final answer
    x = 22,055.93

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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.