Home / 34,665.60-51,998.40-12,479.70

Finding the Fourth Proportional to 34,665.60, 51,998.40 and 12,479.70

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Solution

The fourth proportional to 34,665.60, 51,998.40 and 12,479.70 is: 18,719.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,665.60 : 51,998.40 = 12,479.70 : x
  2. Step 2: Convert to fraction form
    34,665.60/51,998.40 = 12,479.70/x
  3. Step 3: Cross multiply
    34,665.60x = 51,998.40 × 12,479.70
  4. Step 4: Simplify right side
    34,665.60x = 648,924,432.48
  5. Step 5: Solve for x
    x = 648,924,432.48/34,665.60
  6. Step 6: Final answer
    x = 18,719.55

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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.