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Finding the Fourth Proportional to 20,225.25, 30,337.88 and 6,374.25

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Solution

The fourth proportional to 20,225.25, 30,337.88 and 6,374.25 is: 9,561.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,225.25 : 30,337.88 = 6,374.25 : x
  2. Step 2: Convert to fraction form
    20,225.25/30,337.88 = 6,374.25/x
  3. Step 3: Cross multiply
    20,225.25x = 30,337.88 × 6,374.25
  4. Step 4: Simplify right side
    20,225.25x = 193,381,199.72
  5. Step 5: Solve for x
    x = 193,381,199.72/20,225.25
  6. Step 6: Final answer
    x = 9,561.38

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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.