Home / 37,761.12-52,113.68-20,768.64

Finding the Fourth Proportional to 37,761.12, 52,113.68 and 20,768.64

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Solution

The fourth proportional to 37,761.12, 52,113.68 and 20,768.64 is: 28,662.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,761.12 : 52,113.68 = 20,768.64 : x
  2. Step 2: Convert to fraction form
    37,761.12/52,113.68 = 20,768.64/x
  3. Step 3: Cross multiply
    37,761.12x = 52,113.68 × 20,768.64
  4. Step 4: Simplify right side
    37,761.12x = 1,082,330,037.61
  5. Step 5: Solve for x
    x = 1,082,330,037.61/37,761.12
  6. Step 6: Final answer
    x = 28,662.55

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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.