Home / 37,637.21-51,936.52-20,638.73

Finding the Fourth Proportional to 37,637.21, 51,936.52 and 20,638.73

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Solution

The fourth proportional to 37,637.21, 51,936.52 and 20,638.73 is: 28,479.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,637.21 : 51,936.52 = 20,638.73 : x
  2. Step 2: Convert to fraction form
    37,637.21/51,936.52 = 20,638.73/x
  3. Step 3: Cross multiply
    37,637.21x = 51,936.52 × 20,638.73
  4. Step 4: Simplify right side
    37,637.21x = 1,071,903,813.42
  5. Step 5: Solve for x
    x = 1,071,903,813.42/37,637.21
  6. Step 6: Final answer
    x = 28,479.90

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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.