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Finding the Fourth Proportional to 34,614.09, 51,928.09 and 12,429.20

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Solution

The fourth proportional to 34,614.09, 51,928.09 and 12,429.20 is: 18,646.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,614.09 : 51,928.09 = 12,429.20 : x
  2. Step 2: Convert to fraction form
    34,614.09/51,928.09 = 12,429.20/x
  3. Step 3: Cross multiply
    34,614.09x = 51,928.09 × 12,429.20
  4. Step 4: Simplify right side
    34,614.09x = 645,424,714.98
  5. Step 5: Solve for x
    x = 645,424,714.98/34,614.09
  6. Step 6: Final answer
    x = 18,646.30

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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.