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Finding the Fourth Proportional to 28,946.48, 43,419.72 and 8,169.98

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Solution

The fourth proportional to 28,946.48, 43,419.72 and 8,169.98 is: 12,254.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,946.48 : 43,419.72 = 8,169.98 : x
  2. Step 2: Convert to fraction form
    28,946.48/43,419.72 = 8,169.98/x
  3. Step 3: Cross multiply
    28,946.48x = 43,419.72 × 8,169.98
  4. Step 4: Simplify right side
    28,946.48x = 354,738,026.91
  5. Step 5: Solve for x
    x = 354,738,026.91/28,946.48
  6. Step 6: Final answer
    x = 12,254.96

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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.