Home / 35,987.13-49,662.33-20,072.61

Finding the Fourth Proportional to 35,987.13, 49,662.33 and 20,072.61

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Solution

The fourth proportional to 35,987.13, 49,662.33 and 20,072.61 is: 27,700.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,987.13 : 49,662.33 = 20,072.61 : x
  2. Step 2: Convert to fraction form
    35,987.13/49,662.33 = 20,072.61/x
  3. Step 3: Cross multiply
    35,987.13x = 49,662.33 × 20,072.61
  4. Step 4: Simplify right side
    35,987.13x = 996,852,581.78
  5. Step 5: Solve for x
    x = 996,852,581.78/35,987.13
  6. Step 6: Final answer
    x = 27,700.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.