Home / 37,820-52,191.60-21,052.64

Finding the Fourth Proportional to 37,820, 52,191.60 and 21,052.64

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Solution

The fourth proportional to 37,820, 52,191.60 and 21,052.64 is: 29,052.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,820 : 52,191.60 = 21,052.64 : x
  2. Step 2: Convert to fraction form
    37,820/52,191.60 = 21,052.64/x
  3. Step 3: Cross multiply
    37,820x = 52,191.60 × 21,052.64
  4. Step 4: Simplify right side
    37,820x = 1,098,770,965.82
  5. Step 5: Solve for x
    x = 1,098,770,965.82/37,820
  6. Step 6: Final answer
    x = 29,052.64

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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.