Home / 41,122-61,727.40-20,389.36

Finding the Fourth Proportional to 41,122, 61,727.40 and 20,389.36

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Solution

The fourth proportional to 41,122, 61,727.40 and 20,389.36 is: 30,606.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,122 : 61,727.40 = 20,389.36 : x
  2. Step 2: Convert to fraction form
    41,122/61,727.40 = 20,389.36/x
  3. Step 3: Cross multiply
    41,122x = 61,727.40 × 20,389.36
  4. Step 4: Simplify right side
    41,122x = 1,258,582,180.46
  5. Step 5: Solve for x
    x = 1,258,582,180.46/41,122
  6. Step 6: Final answer
    x = 30,606.05

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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.