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Finding the Fourth Proportional to 30,521.58, 45,775.19 and 8,329.68

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Solution

The fourth proportional to 30,521.58, 45,775.19 and 8,329.68 is: 12,492.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,521.58 : 45,775.19 = 8,329.68 : x
  2. Step 2: Convert to fraction form
    30,521.58/45,775.19 = 8,329.68/x
  3. Step 3: Cross multiply
    30,521.58x = 45,775.19 × 8,329.68
  4. Step 4: Simplify right side
    30,521.58x = 381,292,684.64
  5. Step 5: Solve for x
    x = 381,292,684.64/30,521.58
  6. Step 6: Final answer
    x = 12,492.56

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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.