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Finding the Fourth Proportional to 29,479.89, 44,222.02 and 8,421.72

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Solution

The fourth proportional to 29,479.89, 44,222.02 and 8,421.72 is: 12,633.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,479.89 : 44,222.02 = 8,421.72 : x
  2. Step 2: Convert to fraction form
    29,479.89/44,222.02 = 8,421.72/x
  3. Step 3: Cross multiply
    29,479.89x = 44,222.02 × 8,421.72
  4. Step 4: Simplify right side
    29,479.89x = 372,425,283.39
  5. Step 5: Solve for x
    x = 372,425,283.39/29,479.89
  6. Step 6: Final answer
    x = 12,633.20

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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.