Home / 34,543.30-51,812.82-12,355.60

Finding the Fourth Proportional to 34,543.30, 51,812.82 and 12,355.60

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Solution

The fourth proportional to 34,543.30, 51,812.82 and 12,355.60 is: 18,532.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,543.30 : 51,812.82 = 12,355.60 : x
  2. Step 2: Convert to fraction form
    34,543.30/51,812.82 = 12,355.60/x
  3. Step 3: Cross multiply
    34,543.30x = 51,812.82 × 12,355.60
  4. Step 4: Simplify right side
    34,543.30x = 640,178,478.79
  5. Step 5: Solve for x
    x = 640,178,478.79/34,543.30
  6. Step 6: Final answer
    x = 18,532.64

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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.