Home / 36,685.60-55,007.74-11,719.80

Finding the Fourth Proportional to 36,685.60, 55,007.74 and 11,719.80

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Solution

The fourth proportional to 36,685.60, 55,007.74 and 11,719.80 is: 17,573.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,685.60 : 55,007.74 = 11,719.80 : x
  2. Step 2: Convert to fraction form
    36,685.60/55,007.74 = 11,719.80/x
  3. Step 3: Cross multiply
    36,685.60x = 55,007.74 × 11,719.80
  4. Step 4: Simplify right side
    36,685.60x = 644,679,711.25
  5. Step 5: Solve for x
    x = 644,679,711.25/36,685.60
  6. Step 6: Final answer
    x = 17,573.10

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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.