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Finding the Fourth Proportional to 22,373.96, 30,873.58 and 13,421.84

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Solution

The fourth proportional to 22,373.96, 30,873.58 and 13,421.84 is: 18,520.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,373.96 : 30,873.58 = 13,421.84 : x
  2. Step 2: Convert to fraction form
    22,373.96/30,873.58 = 13,421.84/x
  3. Step 3: Cross multiply
    22,373.96x = 30,873.58 × 13,421.84
  4. Step 4: Simplify right side
    22,373.96x = 414,380,250.99
  5. Step 5: Solve for x
    x = 414,380,250.99/22,373.96
  6. Step 6: Final answer
    x = 18,520.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.