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Finding the Fourth Proportional to 20,635.54, 30,948.33 and 9,531.55

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Solution

The fourth proportional to 20,635.54, 30,948.33 and 9,531.55 is: 14,295.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,635.54 : 30,948.33 = 9,531.55 : x
  2. Step 2: Convert to fraction form
    20,635.54/30,948.33 = 9,531.55/x
  3. Step 3: Cross multiply
    20,635.54x = 30,948.33 × 9,531.55
  4. Step 4: Simplify right side
    20,635.54x = 294,985,554.81
  5. Step 5: Solve for x
    x = 294,985,554.81/20,635.54
  6. Step 6: Final answer
    x = 14,295.02

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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.