Home / 34,234.18-51,351.27-12,890.90

Finding the Fourth Proportional to 34,234.18, 51,351.27 and 12,890.90

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Solution

The fourth proportional to 34,234.18, 51,351.27 and 12,890.90 is: 19,336.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,234.18 : 51,351.27 = 12,890.90 : x
  2. Step 2: Convert to fraction form
    34,234.18/51,351.27 = 12,890.90/x
  3. Step 3: Cross multiply
    34,234.18x = 51,351.27 × 12,890.90
  4. Step 4: Simplify right side
    34,234.18x = 661,963,877.63
  5. Step 5: Solve for x
    x = 661,963,877.63/34,234.18
  6. Step 6: Final answer
    x = 19,336.35

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Similar ratio
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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.