Home / 37,781.30-52,137.11-20,553.12

Finding the Fourth Proportional to 37,781.30, 52,137.11 and 20,553.12

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Solution

The fourth proportional to 37,781.30, 52,137.11 and 20,553.12 is: 28,362.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,781.30 : 52,137.11 = 20,553.12 : x
  2. Step 2: Convert to fraction form
    37,781.30/52,137.11 = 20,553.12/x
  3. Step 3: Cross multiply
    37,781.30x = 52,137.11 × 20,553.12
  4. Step 4: Simplify right side
    37,781.30x = 1,071,580,175.52
  5. Step 5: Solve for x
    x = 1,071,580,175.52/37,781.30
  6. Step 6: Final answer
    x = 28,362.72

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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.