Home / 37,878.68-52,270.12-20,883.06

Finding the Fourth Proportional to 37,878.68, 52,270.12 and 20,883.06

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Solution

The fourth proportional to 37,878.68, 52,270.12 and 20,883.06 is: 28,817.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,878.68 : 52,270.12 = 20,883.06 : x
  2. Step 2: Convert to fraction form
    37,878.68/52,270.12 = 20,883.06/x
  3. Step 3: Cross multiply
    37,878.68x = 52,270.12 × 20,883.06
  4. Step 4: Simplify right side
    37,878.68x = 1,091,560,052.17
  5. Step 5: Solve for x
    x = 1,091,560,052.17/37,878.68
  6. Step 6: Final answer
    x = 28,817.27

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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.