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Finding the Fourth Proportional to 29,281.64, 43,929.95 and 8,221.74

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Solution

The fourth proportional to 29,281.64, 43,929.95 and 8,221.74 is: 12,334.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,281.64 : 43,929.95 = 8,221.74 : x
  2. Step 2: Convert to fraction form
    29,281.64/43,929.95 = 8,221.74/x
  3. Step 3: Cross multiply
    29,281.64x = 43,929.95 × 8,221.74
  4. Step 4: Simplify right side
    29,281.64x = 361,180,421.27
  5. Step 5: Solve for x
    x = 361,180,421.27/29,281.64
  6. Step 6: Final answer
    x = 12,334.71

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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.