Home / 20,221.46-30,336.29-7,741.89

Finding the Fourth Proportional to 20,221.46, 30,336.29 and 7,741.89

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Solution

The fourth proportional to 20,221.46, 30,336.29 and 7,741.89 is: 11,614.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,221.46 : 30,336.29 = 7,741.89 : x
  2. Step 2: Convert to fraction form
    20,221.46/30,336.29 = 7,741.89/x
  3. Step 3: Cross multiply
    20,221.46x = 30,336.29 × 7,741.89
  4. Step 4: Simplify right side
    20,221.46x = 234,860,210.51
  5. Step 5: Solve for x
    x = 234,860,210.51/20,221.46
  6. Step 6: Final answer
    x = 11,614.40

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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.