Home / 37,982.07-52,418.33-20,987.81

Finding the Fourth Proportional to 37,982.07, 52,418.33 and 20,987.81

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Solution

The fourth proportional to 37,982.07, 52,418.33 and 20,987.81 is: 28,964.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,982.07 : 52,418.33 = 20,987.81 : x
  2. Step 2: Convert to fraction form
    37,982.07/52,418.33 = 20,987.81/x
  3. Step 3: Cross multiply
    37,982.07x = 52,418.33 × 20,987.81
  4. Step 4: Simplify right side
    37,982.07x = 1,100,145,583.53
  5. Step 5: Solve for x
    x = 1,100,145,583.53/37,982.07
  6. Step 6: Final answer
    x = 28,964.87

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1.5x scale

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.