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Finding the Fourth Proportional to 29,829.52, 44,711.46 and 12,289.78

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Solution

The fourth proportional to 29,829.52, 44,711.46 and 12,289.78 is: 18,421.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,829.52 : 44,711.46 = 12,289.78 : x
  2. Step 2: Convert to fraction form
    29,829.52/44,711.46 = 12,289.78/x
  3. Step 3: Cross multiply
    29,829.52x = 44,711.46 × 12,289.78
  4. Step 4: Simplify right side
    29,829.52x = 549,494,006.88
  5. Step 5: Solve for x
    x = 549,494,006.88/29,829.52
  6. Step 6: Final answer
    x = 18,421.15

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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.