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Finding the Fourth Proportional to 34,412.31, 51,633.05 and 18,811.71

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Solution

The fourth proportional to 34,412.31, 51,633.05 and 18,811.71 is: 28,225.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,412.31 : 51,633.05 = 18,811.71 : x
  2. Step 2: Convert to fraction form
    34,412.31/51,633.05 = 18,811.71/x
  3. Step 3: Cross multiply
    34,412.31x = 51,633.05 × 18,811.71
  4. Step 4: Simplify right side
    34,412.31x = 971,305,868.96
  5. Step 5: Solve for x
    x = 971,305,868.96/34,412.31
  6. Step 6: Final answer
    x = 28,225.54

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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.