Home / 35,887.22-49,521.14-20,780.90

Finding the Fourth Proportional to 35,887.22, 49,521.14 and 20,780.90

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Solution

The fourth proportional to 35,887.22, 49,521.14 and 20,780.90 is: 28,675.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,887.22 : 49,521.14 = 20,780.90 : x
  2. Step 2: Convert to fraction form
    35,887.22/49,521.14 = 20,780.90/x
  3. Step 3: Cross multiply
    35,887.22x = 49,521.14 × 20,780.90
  4. Step 4: Simplify right side
    35,887.22x = 1,029,093,858.23
  5. Step 5: Solve for x
    x = 1,029,093,858.23/35,887.22
  6. Step 6: Final answer
    x = 28,675.78

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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.